An MLB batting order in which no one is older than 25

The challenge is simple: I'm building a Major League Baseball lineup and I can only select players who are 25 and under.

To either spice up (or dull down?) this process, the selected players must have played at least one Major League Baseball game. In other words, sure-fire hot shots (i.e. Bryce Harper, the top pick one year ago by the Washington Nationals) who haven't seen an MLB field cannot be chosen.

So, here we go, and they're listed in the batting order in which they would appear

SS: Starlin Castro, Chicago Cubs
CF: Andrew McCutchen, Pittsburgh 
RF: Jason Heyward, Atlanta
LF: Jay Bruce, Cincinnati
1B: Freddie Freeman, Atlanta
C: Matt Weiters, Baltimore
3B: Pedro Alvarez, Pittsburgh
2B: Dustin Ackley, Seattle

There is one issue about this team that concerns me -- the bulk of the lineup bats left-handed. I'd consider moving McCutchen into the middle of the order, simply to break up the preponderance of left-handed hitters.(And, yes, I am aware that I have moved Jay Bruce to left field; sorry, baseball fans, no current left fielder under 25 was worthy of cracking this lineup.)

So, there you have it. Pick it apart, if you like. Or, praise it, if it's worthy of such.