Rate this team! Where can I improve? WHIR

[Swagger]

Standard NFL H2H points league - non keeper

Starting Lineup

QB - Romo
RB - Tomlinson
RB - Portis
WR - Roddy White
WR - DeShaun Jackson
WR - Donald Driver
TE - Gates
Def - Cowboys
K - Akers

Bench

QB - Jason Cambell
RB - Knowshon Moreno
RB - Hightower
WR - Isaac Bruce
TE - Donald Lee

I'm thinking that my defense/special teams is going to be a weak point but I'm not sure who I can use as bate to trade up....any thoughts on that? Overall thoughts on the team and the direction I should take them?