While Diamondbacks starting pitcher Patrick Corbin will have a market correction at some point, I don't think it will be as severe as you might anticipate. In case you can't tell, I'm buying his hot start.
The most telling sign for me is Corbin is keeping the baseball in the park, which was a problem for him last season. Corbin surrendered 14 home runs in 107 innings last year (1.2 HR/9). That was a little bit uncharacteristic since he allowed just 0.7 home runs per nine innings in 430 2/3 minor-league innings. Through two starts, Corbin hasn't allowed a home run and he allowed just one in 25 2/3 spring innings, while he was securing a spot in the team's rotation.
Corbin is a heavy groundball pitcher, but he seems to be doing an even better job of keeping the ball down in 2013 (25.6 percent fly ball rate, per FanGraphs.com), which is why I feel he will be able to sustain his success.