How Good Is Gio Gonzalez?
Yesterday, the Nationals gave up four prospects, including three of their top 10 guys, for the right to acquire Gio Gonzalez from the Oakland A’s. This follows on the heels of the Mat Latos trade, essentially establishing current market value for a young starting pitcher with four year of team control. However, with Latos, the only nitpicking you can do about his performance to date is that he’s pitched in Petco, because other than that, he’s been pretty fantastic. Gonzalez’s track record is a little more spotty, starting out poorly before turning in two good seasons the last couple of years, but maintaining a walk rate that’s among the very worst in baseball.
Even while succeeding, Gonzalez simply hasn’t shown much of an ability to throw strikes on a regular basis, and those command problems have drawn unfavorable comparisons to the likes of Oliver Perez and even my own analogy to Edinson Volquez. However, rather than just continuing to point out the flaw in Gonzalez’s skillset, I thought it’d be useful to look at this pitcher type in general.
So, using the sweet, sweet custom leaderboards here on FanGraphs, I compiled a list of all starting pitcher seasons over the last 10 years with a minimum of 100 innings pitched and then filtered by walk rate (>=10%), strikeout rate (>=20%), and ground ball rate (>=40%). The resulting list gave me 38 pitcher seasons from 25 different pitchers. We can safely say that these guys have produced results at one time or another in a pretty similar fashion to how Gonzalez has pitched over the last couple of years. Here’s the list of those pitcher seasons, sorted in alphabetic order. Read the rest of this entry »




