BBall gurus - need some advice for the wire

First time in a basketball league, but I'm kind of getting the hang of it and my team has had some success. Here's what I got.

CP3 - PG
Jose Calderon PG
Mario Chalmers PG
Kemba Walker PG/SG
Ryan Anderson PF
Andrea Bargnani PF/C (out for a while)
Al Harrington PF(been a pretty solid pick up)
Luol Deng SG
Kevin Martin SG/SF
Trevor Ariza SG/SF
Marcus Camby C/PF
Emeka Oakafor C
Nikola Pekovic C

Here's what I'm eyeing on the wire still:

Zach Randolph PF (out, should be back in a week or two?)
Ramon Sessions PG
Spencer Hawes C (out)
Gordon Hayward SG, SF
MarShon Brooks (just came back, was a solid rookie before getting hurt)
Alonzo Gee SG, SF

I'm playing the guy in second place these week and he's pretty stacked with Dwight and Dirk. Should I make some moves this week and swap some people out? Do I risk picking up Randolph right now?

I'll hang up and listen.