What I'd be worried about, as his manager or an Angels fan, is how he's planning to approach cutting down his strikeouts. Any method of doing that has definite downside. I mean, the options are pretty much:
A) Don't swing as hard with 2 strikes - obvious down side from a guy averaging over 70 XBH a season.
B) Swing at more borderline pitches - what guys like Dunn would have needed to do, but you risk lowering your success on balls in play when you swing at more marginal pitches.
C) Swing at fewer borderline pitches - what guys like Adam Jones need to do, but you risk getting yourself into bad counts and then having to swing.
The big issue is that I don't think Trout needs to do any of these things. His swing rates in and out of the strike zone last year were pretty similar to his career averages. His contact rate was down a little bit, but within the range where luck likely played a huge role. It seems to me that almost any correction would probably be an overcorrection. It looks like maybe he got a little unlucky last year, but given the same approach should strike out at a rate closer to the 2013 than the 2014 rate in the future. His overall swing rates are still pretty low, and always have been, but they were actually up last year, and he struck out more. Given his success rate when he does contact the ball, I wouldn't advocate swinging even more, but I definitely wouldn't advocate swinging less given that he already takes close to half the strikes thrown to him...