I came across an article by a guy who has used a formula over the past few seasons to predict who the next breakout star will be. He looks at the leaders in HR/Fly Ball in the previous September to find outliers. This system has led him to pick Ben Zobrist, Jose Bautista, and Michael Morse during their breakout seasons. Granted, he did pick Brent Morel last year, so hopefully that is an exception to the system. Anyway, his pick for this year's breakout star: Jason Castro.
Castro did start start tattooing the ball with more regularity late last year, which could be attributed to getting healthy and used to playing at that level. He has continued hitting the ball with authority this Spring, which doesn't always guarantee regular season success. But, it is an interesting theory and he does appear to have turned a corner in his career. If his prediction does come true, this would be fantastic for the club and would really help speed up the return to decent.
http://www.beyondtheboxscore.com/2013/3/28/4154754/the-next-next-next-jose-bautista