Help me improve

[decktard]

Here is my team... 12 team roto. Currently I'm in 7th and my stats pretty much reflect that. I'm pretty much dead in the middle of all stats other than saves and Ks.

What should I do to improve?

C J. Kendall
1B C. Delgado
2B A. Soriano
3B T. Glaus
SS É. Rentería
OF C. Crawford
OF G. Sheffield
OF V. Wells
Util M. Mora
BN S. Finley
BN C. Figgins
BN J. Morneau

SP R. Harden
SP A. Pettitte
RP J. Nathan
RP J. Mesa
P D. Graves
P B. Ryan
P -
BN Ol. Pérez
BN J. Vázquez
BN L. Hernández