"You never know what you're gonna get" (from Forrest Gump), this little witticism also applies to baseball players. Every front office projects what their prospects will become, but it is never a sure bet. Consider two current Minnesota Twins: Brian Dozier came to the Twins as a shortstop, thought to be fundamentally sound in the field, but without great tools. As a hitter, he had never hit below .274 and never exceeded nine homers in a season, with his top year yielding at .320 average in a year split between advanced A ball and AA. Typical middle infielder profile. Sometime in 2013, the scouting report changed--Dozier has become a second baseman and a guy with a low batting average, but with the most extra base sock for his position in major league baseball. It could be argued that from the start of 2014 (or perhaps midseason of 2013) until the All-Star break in 2015 that Dozier put together elite numbers based on his power numbers. Overall, despite the low batting average and middling overall OBP, Dozier has established himself as a hitter based on his extra-base hits. Since 2013 he has compiled 105 doubles and 69 homers from second base.

Now, lets look at Oswaldo Arcia: Coming through the system, the most used comp for Arcia was Bobby Abreu, a fine hitter with some power. Arcia hit his way throught the minors, always as a young player for the league. He topped out at 17 homers in 2012, splitting his season between A+ and AA and hitting a combined .320. As a Twin, Arcia has become a true home run threat, hitting 34 homers (including some prodigious long balls) in under 800 plate appearances in 2013 and 2014. However, the batting average and more importantly strike zone discipline have diminished dramatically.

Both players have increased their power numbers at the highest level, but lost something in the transition. Dozier hasn't cracked .250 for batting average and this season set the club strikeout record. Arcia's K percentage is much higher than Dozier's and he seldom takes a free pass, in fact this year for the Twins Arcia didn't get a non-intentional walk (65 PAs). I think the Twins would be happy if both Dozier and Arcia became more complete hitters, even if it costs a few home runs. In Arcia's case, I think his time in Minnesota will end if he doesn't modify his approach (and results), while with Dozier, becoming someone who uses the whole field more often would be an adjustment to the adjustments that major league pitchers have used on him.