Advice/ Rate fantasy baseball team

This time of year again... I think this team is pretty complete. Just wanting to hear what you would do to improve. Thinking of packaging some offense for an ace starter

League: 12 Teams; Full dynasty (6th year); 28 man rosters (makes it more like 14 team team with 4 player minor league rosters); standard head to head league

C: Mauer
1B: Fielder, Freeman, I.Davis
2B: Pedroia
3B: Zimmerman, Moustakas, M. Machado
SS: Reyes
OF: A. Gordon, Beltran, Stanton, Bruce, C. Crawford
use two UTIL positions

SP: Wainright
SP: Gallardo
SP: I. Kennedy
SP: Haren
SP: J. Johnson
SP: J. Lester
SP: A. Sanchez
SP: J. Samardizija
SP: A. Burnett
SP: A. Cashner
SP: B. Beachy
RP: A. Soriano
RP: J. Axford
RP: H. Street

Minor League Roster:
J. Taillon, J. Paxton, Two blank spots and will probably drop Paxton and redraft him with my 4th pick (don't know if he is worth what would be a 2nd round minor league pick)