I'll rank each position on a 1-10 scale, 1 being worst and 10 being best.
QB - 6.5 Obvious injury issues with Manning. Bradford could be a superstar this year.
RB - 9 You wound up with a really nice stable of backs. Rice is awesome and Best is a great #2. Good depth.
WR - 7 Wallace could (and should) be a star this year and Welker is always solid, the rest are not super inspiring.
TE - 4 Lot of upside, but may not develop this year. I assume you got him late, so probably good value.
DL - 10 Doesn't get much better than having two of the top 5-6 at the position.
LB - 10 I would expect all of these guys to finish in the top 10-12 for LB's.
DB - 9 Only issues: Berry and Ward both 2nd year players. Can they keep it going? I think so.....
Nice looking team! I'm especially impressed with how well your defense turned out in a 12-teamer. What is the IDP experience level overall of your leaguemates, if I may ask?
check out mine: viewtopic.php?f=44&t=493813