Any suggestions to improve my team? 16 team league, 5x5 roto format. Thanks!

Normal Master Batters
C J Saltalamacchia
1B A Gonzalez
2B O Hudson
3B E Encarnacion
CI A. Rodriguez (I)
SS T Tulowitzki
MI H Kendrick
CI J Votto
OF A Ethier
OF C Maybin
OF J Bruce
OF R J. Braun
OF W Taveras
U J Schafer
U L Milledge
RES W Balentien (R)
SP C Billingsley
SP C Volstad
SP J Niemann
SP J Johnson
RP J Masterson
SP U Jimenez
SP A Cook (R)
SP A Pettitte (R)
SP J Zimmermann (R)
SP S Hill (R)
SP H Kuroda (I)
RP D Reyes
RP J McDonald
RP K Gregg

Nice team name. See if you can flip Hudson for a better OF than Maybin, try to flip Maybin for a better 2nd baseman then Hudson and see if you can flip JZ for a more reliable starter option.