I think you were right to take CJ2k over DMC. I have no reason to believe DMC can hold up for an entire season. Obviously Welker is a killer in PPR. I'm a Chargers fan, even I am a little nervous about what I've seen out of Rivers in the preseason. SD's offensive line is bad. His receivers are bad. You might think about moving him early, so he doesn't have a chance to play his value down. You've got good depth at every position, if you get lucky and have one or two guys have better than average seasons you'll be a contender.
12 Team PPR
1 QB, 2 RB, 2 WR, 1 TE, 1 Flex (RB/WR/TE)
QB: Newton, Ponder
RB: Rice, Sproles, R. Bush, F. Jackson
WR: S. Smith (Car), Decker, Hixon
TE: Gates, Pettigrew