Rate my current lineup -- what are my needs now? Ks? RBIs?

[UGADawgGuy]

12-manager, 5x5, head-to-head, non-keeper league -- straight points, weekly wins in each category

Roster (as of 4/24/07):

C -- J. Mauer
1B -- J. Kent
2B -- B. Upton
3B -- Aramis Ramirez
SS -- E. Renteria
OF -- C. Beltran
OF -- Kelly Johnson
OF -- J. Willingham
Util -- A. Rios
DL -- OF S. Podsednik
BN -- 1B L. Overbay
BN -- 1B R. Sexson
BN -- 2B/3B/SS J. Lugo
BN -- 2B R. Theriot

SP -- J. Smoltz
SP -- C. Sabathia
RP -- J. Papelbon
RP -- S. Shields
P -- J. Francis
P -- D. Lowe
P -- C. Meredith
BN -- T. Glavine
BN -- T. Lincecum
BN - J. Weaver
DL -- Chien-Ming Wang (on DL until forced off)

I'm getting very little out of the guys I was initially relying on for Ks, ERA, and RBIs (especially the latter). Should I make any moves?

-- UGADawgGuy