Matt Garza Career Numbers
8 MLB YRS, 63-62, 3.80 ERA, 927 SO, 1098 IP, 1.28 WHIP, 7.6 SO/9, 2.50 SO/BB
Jake Peavy Career Numbers
12 MLB YRS, 127-97, 3.49 ERA, 1817 SO, 1873.1 IP, 1.17 WHIP, 8.7 SO/9, 3.23 SO/BB
Garza and Peavy both rack up the strikeouts, and keep their WHIPs pretty low. Peavy has a lower ERA, but also has pitched in nearly 800 more innings than Garza. In the long term, Garza would always be a better option, as he is the younger pitcher. But, for one year who would be the better pitcher down the stretch?
Peavy's career numbers show that Peavy has been a better pitcher, but his prime may be behind him. If you look at both Peavy's and Garza's numbers this year, you can get a real feel of what type of pitcher each team is looking at.
Matt Garza 2013 Numbers
11 GS, 6-1, 3.17 ERA, 62 SO, 71 IP, 1.14 WHIP, 7.9 SO/9, 3.10 SO/BB
Jake Peavy 2013 Numbers
12 GS, 7-4, 4.19 ERA, 69 SO, 73 IP, 1.16 WHIP, 8.5 SO/9, 4.60 SO/BB
In my opinion, I believe that Garza will help a contending team more than Jake Peavy. Even though Peavy has two years left on his current deal (vesting option for a third), he probably will continue to decrease, while Garza is still in his prime.
GMs have their reasons for one pitcher over another, and honestly, they won't go wrong going for either target. But, I think Matt Garza has the highest chance of getting you over the hump, and into the World Series.