Am I worrying too much? QB/WR/RB trade?

[chcbb]

To start here's my qb/wr/rb lineup (start 1qb 2wr 2rb 1rb/wr), mostly standard yahoo scoring, starters this week in bold:
QB - Schaub, Cutler
WR - Megatron, Jennings, Sims-Walker, Floyd, Bowe
RB - CJ2K, Benson, Charles, M. Bush

I'm pretty happy w/ my QB & WR situation (assuming Calvin starts catching touchdowns that count!), but after Chris Johnson am a little worried about my RB situation... I'm afraid the Bengals are going to start splitting carries w/ Scott, Bush seems like a wildcard, and we'll have to see if Charles stays hot.
Anyway there is one team in my league particular that is stacked at RB, but hurting at QB, and doesn't have a lot of depth at WR:
QB - Kolb, Stafford
WR - R. White, Smith (Car), S. Rice
RB - MJD, Mathews, Mendenhall, Best, A. Foster

Anyone see a trade there that I should try for? I'm thinking of offering Cutler and a WR (maybe Bowe or Floyd?) for one of his RB, tell him to drop S. Rice, and then I'd pick up a serviceable backup QB from the FA list (Garrard, Hasslebeck, Young, Rothlesburger, Anderson ?)...

does this make any sense, or should I be a little more patient w/ my team?