Sit tight or keep shaking? WHIR

[Box]

I've had a busy 1st month of the season and made a lot of moves. I've stashed Bruce and LaRoche, got lucky picking up Volquez and Salty. Blalock's health is a minor concern until LaRoche is back from the DL. My pitching staff is solid, I'd like to add a little more power and AVG. Maybe swing a 2 for 1 to free up space.

Available WW: Bill Hall, Rolen, Mora, Keppinger, M. Cabrera, Lind, Griffey, Blake, Werth

Any other glaring weaknesses I'm missing?

12 team Mixed 6 keepers
Normal 5x5 plus (1B,2B,3B,SO,OBP; L,CG,SHO,BB,IP)
C: McCann 1B: Fielder 2B: Weeks
3B: Blalock SS: Crosby Util: Barmes
OF: Sizemore, Votto, Milledge
Bench: Saltalamacchia, Hermida, J. Bruce
DL: J. Rollins, A. LaRoche

SP: J. Santana, Felix, E. Santana, Wainwright, Grienke, Volquez
RP: Lidge, Wagner, S. Shields, Benoit

[cowsvils]

I think you are fine, although with McCann at catcher I might possibly consider packaging Salty + Blalock for a 3B upgrade