Friday, February 11, 2005

The Finley Shooting Slump: My Take

The Internet community of Mavs fans is abuzz about "Finley's tantrum" (reported by Mike Fisher here) and Don Nelson calling Finley out (reported here and here and here and here). Rather than focusing on the "tantrum" or why Nelson decided to call Finley out, however, I thought I'd look at why Finley might be in a protracted slump (.407 FG% since January 1).

Finley was quoted in one of the articles linked above as saying that he was getting enough shots, just not enough quality shots. I think there's some real truth to this. I was talking to a friend yesterday, and we both agreed that the guy who has been most heavily impacted by Nash's departure is Finley. Dirk has the ability to create his own shot, and he has been able to survive the departure of Nash quite nicely, but Finley is much better off when someone else is creating for him. Last year, the ball was in Nash's hands most of the time, and Nash would set Finley (and others) up for the shots that they wanted. This year, the ball spends a lot more time in Dirk's hands and the Mavs don't run nearly as many plays which involve the point guards penetrating and then kicking like they did with Nash. I'm not necessarily saying that's a bad thing, because in the past the overreliance on Nash made the team easier to shut down in the playoffs. Shut down Nash, and the Mavs struggled offensively. The Kings series was a prime example of that. However, what I am saying is that the Mavs haven't found a way to get Finley enough quality shots this year, and by quality shots I mean shots that he doesn't have to create on his own. If the man is open, he will knock shots down.

Lest anyone think I'm just basing this all on my own perception, I offer up some interesting Finley stats from 82games.com:

2003-2004
FG%: .443
eFG%: .509
Assisted FGM: 67%
Assisted jump shots: 67%
Jump shot eFG%: .492
Assisted close shots: 65%
close eFG%: .524
Assisted shots with 11-15 seconds on the shot clock: 73%
eFG% with 11-15 seconds on the shot clock: .544
Assisted shots with 0-10 seconds on the shot clock: 71%
eFG% with 0-10 seconds on the shot clock: .537

2004-2005
FG%: .422
eFG%: .481
Assisted FGM: 58%
Assisted jump shots: 60%
Jump shot eFG%: .470
Assisted close shots: 48%
close eFG%: .500
Assisted shots with 11-15 seconds on the shot clock: 60%
eFG% with 11-15 seconds on the shot clock: .504
Assisted shots with 0-10 seconds on the shot clock: 60%
eFG% with 0-10 seconds on the shot clock: .461


So what can we gather from that data? Well, it seems pretty obvious to me. Finley, primarily a jump shooter for the past two seasons, was getting set up for his shots a lot more often last year than this year. His shooting percentages are down across the board, IMO, primarily because he's taking more contested shots. It is particularly telling that last year Finley was a killer with the shot clock on his back (eFG%: .537), and this year he is just average with the shot clock winding down (eFG%: .461). That's because Finley was set up 71% of the time last year in that situation as opposed to 60% of the time this year.

So what's the solution? The Mavs don't use Terry in the same way that they used Nash, and it doesn't appear likely that Finley will get as many shots in the same way as he did in the past. So how do the Mavs encourage Finley to be more aggressive and get him more quality shots? My suggestion would be to put Finley down on the block, particularly against smaller guards. I think Finley can post up and rise up over the top for a pretty clean look against most of the guys covering him. Also, I think that posting Finley could lead to double teams if the Mavs do it on a regular basis, which can only be a good thing.

Tuesday, February 08, 2005

The Modified PPP: Part Two...

After further discussion here, I have modified my PPP formula as follows:

PTS/[FGM+(FG Missed*.7)+(FTA*.44)+Offensive Fouls+Ballhandling Turnovers]

Just for the heck of it, I decided to compile a spreadsheet which calculated the modified PPP for the top 100 scorers in the NBA. Here are the results:


Player Modified PPP
allen iverson 1.12
kobe bryant 1.15
dirk nowitzki 1.26
jermaine o'neal 1.12
amare stoudemire 1.27
tracy mcgrady 1.19
lebron james 1.2
gilbert arenas 1.23
ray allen 1.24
dwyane wade 1.14
shaquille o'neal 1.17
kevin garnett 1.18
paul pierce 1.21
jason richardson 1.11
richard jefferson 1.11
michael redd 1.18
steve francis 1.1
chris webber 1.1
tim duncan 1.15
larry hughes 1.14
corey maggette 1.15
vince carter 1.15
stephon marbury 1.23
rashard lewis 1.25
antawn jamison 1.12
richard hamilton 1.15
peja stojakovic 1.28
elton brand 1.14
antoine walker 1.03
carmelo anthony 1.01
shawn marion 1.26
zach randolph 1.08
pau gasol 1.17
jamal crawford 1.14
grant hill 1.18
mike bibby 1.23
yao ming 1.17
carlos boozer 1.16
michael finley 1.19
al harrington 1.05
zydrunas ilgauskas 1.11
desmond mason 1.14
bobby simmons 1.18
chauncey billups 1.26
jamaal tinsley 1.11
jalen rose 1.17
troy murphy 1.07
joe johnson 1.19
cuttino mobley 1.21
manu ginobili 1.31
chris bosh 1.12
wally szczerbiak 1.27
jerry stackhouse 1.15
quentin richardson 1.18
kirk hinrich 1.11
tony parker 1.11
lee nailon 1.13
kenyon martin 1.09
steve nash 1.31
brad miller 1.29
lamar odom 1.14
eddycurry 1.1
damon stoudamire 1.18
jeff mcinnis 1.17
drew gooden 1.22
emeka okafor 1.02
ricky davis 1.16
sam cassell 1.14
caron butler 1.14
andre miller 1.12
rafer alston 1.14
hedo turkoglu 1.2
chucky atkins 1.28
ben gordon 1.16
rasheed wallace 1.05
matt harpring 1.13
speedy claxton 1.09
vladamir radmanovic 1.22
eddie jones 1.23
tayshaun prince 1.19
latrell sprewell 1.11
primoz brezec 1.15
gary payton 1.15
mike dunleavy 1.1
mike miller 1.31
luol deng 1.06
marc jackson 1.12
mehmet okur 1.21
david wesley 1.17
antonio daniels 1.25
kyle korver 1.36
nazr mohammed 1.15
udonis haslem 1.25
earl boykins 1.16
morris peterson 1.22
kurt thomas 1.09
jason terry 1.35
raef lafrentz 1.27
damon jones 1.37

Now, here are the top 100 scorers, ranked from most to least efficient:

Player KG's PPP
damon jones 1.37
kyle korver 1.36
jason terry 1.35
manu ginobili 1.31
steve nash 1.31
mike miller 1.31
brad miller 1.29
chucky atkins 1.28
peja stojakovic 1.28
w. szczerbiak 1.27
a. stoudemire 1.27
raef lafrentz 1.27
shawn marion 1.26
c.billups 1.26
dirk nowitzki 1.26
antonio daniels 1.25
rashard lewis 1.25
udonis haslem 1.25
ray allen 1.24
eddie jones 1.23
gilbert arenas 1.23
mike bibby 1.23
stephon marbury 1.23
vlad radmanovic 1.22
drew gooden 1.22
morris peterson 1.22
mehmet okur 1.21
paul pierce 1.21
cuttino mobley 1.21
hedo turkoglu 1.2
lebron james 1.2
tayshaun prince 1.19
tracy mcgrady 1.19
joe johnson 1.19
michael finley 1.19
grant hill 1.18
kevin garnett 1.18
michael redd 1.18
q. richardson 1.18
d. stoudamire 1.18
bobby simmons 1.18
yao ming 1.17
jeff mcinnis 1.17
s. o'neal 1.17
david wesley 1.17
jalen rose 1.17
pau gasol 1.17
ricky davis 1.16
ben gordon 1.16
earl boykins 1.16
carlos boozer 1.16
kobe bryant 1.15
corey maggette 1.15
r. hamilton 1.15
tim duncan 1.15
j. stackhouse 1.15
v. carter 1.15
p. brezec 1.15
g. payton 1.15
n. mohammed 1.15
d. wade 1.14
d. mason 1.14
lamar odom 1.14
sam cassell 1.14
caron butler 1.14
elton brand 1.14
larry hughes 1.14
jamal crawford 1.14
rafer alston 1.14
matt harpring 1.13
lee nailon 1.13
j. o'neal 1.12
chris bosh 1.12
antawn jamison 1.12
marc jackson 1.12
andre miller 1.12
allen iverson 1.12
z. ilgauskas 1.11
r. jefferson 1.11
j. richardson 1.11
l.sprewell 1.11
jamaal tinsley 1.11
tony parker 1.11
kirk hinrich 1.11
chris webber 1.1
steve francis 1.1
mike dunleavy 1.1
eddy curry 1.1
speedy claxton 1.09
kenyon martin 1.09
kurt thomas 1.09
zach randolph 1.08
troy murphy 1.07
luol deng 1.06
al harrington 1.05
rasheed wallace 1.05
antoine walker 1.03
emeka okafor 1.02
carmelo anthony 1.01

It's really interesting to see where different players fall. For instance, for as much as Mavs fans gripe about Finley's poor shooting lately, he's still more efficient offensively than a lot of his counterparts. Of the top 10 scorers in the league, Dirk is second in efficiency only to Amare Stoudemire. Also, Jerry Stackhouse, derided by many Mavs fans as an inefficient offensive player, was right in the middle of the pack in terms of offensive efficiency in comparison to the league's other top scorers. Notably, he is just as efficient as Tim Duncan, Kobe Bryant, Corey Maggette, and Rip Hamilton, and more efficient than Elton Brand, Jermaine O'Neal, and Antawn Jamison, among others.

Oh well, that's my little statistical contribution for the day...




Saturday, February 05, 2005

The Modified PPP (Points-Per-Possession) Stat

In the midst of a stimulating discussion with keven at LMF, I had a rare moment of clarity regarding the widely-used "points-per-possession" stat and a way that I believe it could be improved to more accurately reflect a player's scoring efficiency.

The formula keven uses is PTS/(FGA+(FTA*.5)+TO). That's the traditional formula I've seen. The formula developed by John Hollinger is PTS/(FGA+(FTA*.44)+TO-OREB). The Hollinger formula accounts for offensive rebounds and situations where the player scores and gets fouled, receiving one foul shot. I think both formulas have problems.

Since we're trying to use the PPP to track scoring efficiency, it's not fair to give full weight to an offensive rebound, because a lot of times a player gets an offensive rebound and then passes the ball. An appropriate formula would give the player credit if they grabbed an offensive rebound and then scored. I'm not sure, however, that such a stat is tracked. 82games.com tracks the percentage of FGAs that are "tips", but that wouldn't account for all putbacks.

The other major flaw in both formulas is that they give too much weight to turnovers. If you're trying to track scoring efficiency, the only turnovers you would count would be turnovers committed while trying to score. For example:

  • offensive fouls when the player is handling the ball
  • offensive fouls when the player is trying to establish post position
  • offensive fouls when the player pushes off to get free of a defender
  • losing the ball off the dribble or being stripped of the ball
  • three second calls when the player has the ball; and
  • traveling/palming/double-dribbling violations.

You wouldn't count turnovers that are committed when the player isn't trying to score. For example:

  • a bad pass
  • an offensive foul off the ball
  • a moving screen/pick
  • three second calls when the player doesn't have the ball; and
  • five-second calls inbounding the ball
Giving weight to all ballhandling turnovers is probably unfair, because it adversely affects the rating of players with greater ballhandling responsibility in the offense, but no stat is perfect. 82games.com tracks turnovers and categorizes them into offensive fouls, bad passes, ballhandling turnovers, and other turnovers. That's also not perfect, however, since it doesn't differentiate between offensive fouls committed off the ball and offensive fouls committed while trying to score.

So what's the solution? I suppose that a reasonable compromise would be for us to use the data that we have available to tweak the formula such that it's at least as accurate as it can be. I'd propose the following formula:

POINTS/(FGA+(FTA*.44)+(Offensive Fouls+Ball Handling Turnovers)-Tips

This improved formula doesn't give weight to "non-scoring" turnovers like bad passes. That way we can use data from the statistics the NBA keeps and statistics that 82games keeps to at least give a more appropriate weight to turnovers and offensive rebounds.

Applying the above formula (using the stats as they stood before last night's game):

Stackhouse
points-----------616
FGA-------------483
FTA-------------224
Offensive fouls---15
Ballhandling TOs--27
Tips-------------5
Modified PPP ----.996

Finley
points----------497
FGA------------446
FTA------------78
Offensive fouls--4
Ballhandling TOs-11
Tips-------------0
Modified PPP-----1.00

Nowitzki
points----------1145
FGA------------832
FTA------------400
Offensive fouls--15
Ballhandling TOs-27
Tips-------------8
Modified PPP-----1.10

Terry
points----------490
FGA------------355
FTA------------72
Offensive fouls--7
Ballhandling TOs-21
Tips------------0
Modified PPP----1.18

Dampier
points----------377
FGA------------268
FTA------------149
Offensive fouls--13
Ballhandling TOs-31
Tips------------29
Modified PPP----1.08

Howard
points----------445
FGA------------381
FTA------------106
Offensive fouls--10
Ballhandling TOs-18
Tips------------15
Modified PPP----1.01

I think that this "modified PPP" more accurately reflects players' relative scoring efficiency.

Oh well, that's my two cents for today. Hopefully I'll have more blog entries coming soon regarding the Mavs' season so far and what the rest of the year holds for them...