Okay, fine, here we go. Projecting Matt Garza. From 2008 to 2010, his first three full seasons in the majors, Garza had a very clear ability level. Actually, his partial seasons with the Twins matched up pretty well, too, but we'll skip those to be fair. FIP: 4.14, 4.17, 4.42 xFIP: 4.42, 4.14, 4.31 Those are pretty mediocre numbers, and it's not hard to see why. The K-rates (6.2, 8.4, 6.8) averaged out to above-average but uninspiring, while he walked a little more than you'd like (2.9, 3.5, 2.8) and gave up too many home runs (0.9, 1.1, 1.2). He was also a fairly extreme fly ball pitcher, which explains his consistently .270ish BABIP. In 2011, three things changed, and they are all somewhat related. 1) He switched leagues out of the difficult AL East. 2) He went from throwing 72% fastballs to 53%, with the difference split up among his curve, changeup and slider. 3) He went from extreme flyball pitcher to a fairly neutral one. The result was a new high in K-rate (9.0) and a decrease in home runs (down to 0.6), resulting in impressive 2.95 FIP and 3.19 xFIP. Okay, so how sustainable is it for him to throw offspeed stuff on 47% of his pitches and maintain that success? I'm skeptical. Using fangraphs, in 2009 and 2010, there were 17 pitcher seasons when the pitcher threw fastballs (including cutters) less than 55% of the time and had at least a 3.5 fWAR. 15 of the 17 saw a decrease in their fWAR the next season, with an average change of -1.9 fWAR. Relying heavily on breaking balls for improvement looks pretty ephemeral to me. It increases the risk of injury, and eventually the hitters just plain catch on. Combine that with a huge jump in performance, and I say the plexiglass principle is about to hit Matt Garza very, very hard. He'll likely never be more valuable on the trade market than he is right now.