I think you have to play Felix. There is too much uncertainty with AP's injury and the fact that MIN could be behind by 21 points quick vs. that NO OFF. I think that Felix is a safe pick with huge upside, you know that he will get all of the RB touches and he is the type of back that can break one at any time.
In terms of your QB, can't you hit the waiver wire? I mean Rex Grossman is a better option IMO than those 2 guys. If I had to choose between the 2 you mentioned, I would go Sanchez. I don't like the Locker situation in TENN and they could be using the run game heavily vs. IND. PHI DEF has given up some huge plays this year and while WR1 have not done well vs. PHI, WR2 and WR3 have (not to mention TE), but I would hit the WW and look for a QB not mentioned in your post.
Help on mine:viewtopic.php?t=511167