How can improve this team? (deep league)

[Chadgo5]

13 team - keeper league - roto 6x6 (OBP and IP added)
- we draft a 14 player farm team
- salary cap $315 (for 23 starters)

I went into the draft needing to bargain shop as I had spent much of my $ on my keepers. How can I improve this team:

C - Mauer (keeper $26)
C - Johjima ($12)
1B - Konerko (keeper $26)
2B - Roberts ($14)
SS - Tulowitski ($6)
3B - Wright (keeper $32)
MI - K. Johnson ($1)
CI - Chavez ($16)
OF - Dye (keeper $14)
OF - Markakis ($13)
OF - Quentin ($13)
OF - Kearns ($11)
OF - Murton ($9)
DH - Wigginton ($6)

SP - Oswalt (keeper $24)
SP - Peavy (keeper $29)
SP - Hamels (keeper $1)
SP - Smoltz ($18)
SP - Garland ($7)
RP - F. Cordero ($22)
RP - Dotel ($12)
RP - Howry ($4)
RP - Linebrink ($4)

Farm team:
C - B. Schneider
1B - Hatteberg
2B - Ellis
SS - Hardy
OF - Catalanatto
OF - N. Cruz
OF - Delucci
SP - C. James
SP - Maine
SP - Davies
SP - Byrd
SP - P. Martinez
RP - Neshek
RP - L. Vizcaino