How can i improve my team this season (Please Help me Out)

[Saintsfan2004]

Fellas i am stumbling down the standings in my league... What should i do to improve my team... Here is my roster...

C- G. Liard -Texas
1B - T. Hafner - Cleveland
2B - D. Jiménez - Cin
3B - A. Ramírez - ChC
SS - O. Cabrera - Mon
OF - M. Ramírez - Bos
OF - S. Posednik - Mil
OF - C. Lee CWS
Util - L. Ford - Min
B - (1B)K. Millar - Bos
B - (SS) A. Everett - Hou
B - (OF) M. Grissom - SF
DL - (OF) L. Walker - Col

SP - R. Halladay - Tor
SP - B. Colon - Ana
SP - J. Lieber - NYY
SP - G. Maddux - CHC
SP - E. Loiaza - CWS
SP - J. Contrertas - NYY
RP - E. Guardado - Sea
RP - D. Kolb - Mil
RP - M. Herges

Here are some decent free agents out there....
J. Encarnación, P. Konerko, M. Anderson, C. Jones (DL), M. Lieberthal, J. Rollins, M. LeCroy (DL), R. Durham (DL), E. Young and M. Cameron....

Please take a look at my roster and give me some honest opinions

Thanks