As Chuck Finder reported this morning, Joe Kerrigan has yet to decide whether he will return as the Pirates' pitching coach in 2010. While it is nearly impossible to measure a coach's effect on a team, I thought this would be a good time to compare the 2008 pitching staff to the one we have seen thus far in 2009. Let's jump right into a whole mess of team stats.
 

2008
2009

ERA
5.10
4.62

FIP
4.84
4.55

K/9
5.96
5.89

BB/9
4.06
3.55

HR/9
1.09
1.03

Opponent's Average
0.284
0.273

Line Drive%
21.40%
19.00%

Ground Ball%
44.00%
44.10%

Fly Ball%
34.60%
36.90%

Infield Fly Ball%
7.60%
8.90%

Strikes
14,918
12,647

Balls
9,457
7,784

Strike%
61.20%
61.90%

Fastball%
62.60%
59.50%

Slider%
18.70%
14.20%

Curveball%
6.90%
11.20%

Change%
10.80%
13.00%

O-Swing%
24.40%
25.90%

Sw...

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