RB decisions

Have A. Foster, B. Wells, D. Thomas, K. Moreno, R. Torain, and J. Starks but can only keep 5 in 12 team PPR league.  Definitely keeping Foster and Thomas.  I'm sure I could get something decent in a trade for Wells while his value is high.  If I got rid of one of the other 3 I'd probably just have to drop them so should I try and trade wells or just drop Moreno, Torain, or Starks.  Wells doesn't catch passes and is always an injury risk so leaning to trading him for a WR or TE even though I really don't have needs anywhere.  Love Torain's schedule the next few weeks but you never know with Shanahan.  Not sure Starks or Moreno is worth keeping as they probably won't get many goalline carries and neither will get much more than 10 carries per game it seems.  Any thoughts?

If u can get a good trade with B. Wells, go for it, otherwise I would get rid of either Starks or Moreno (injury prone).

I would trade Wells ONLY for WR1 or WR2 w/ WR1 upside.  Wells is every-down back which is hard to find now days.

D.Thomas: has Lex Hilliard, now Steve Slaton.
K. Moreno: always been an injury prone, now McGahee is the feature back.
R. Torain: "Hot hand" now, and you never know with Shanahan.
J. Starks: has Ryan Grant & John Kuhn.

use foster as trade bait and get rid of him while is stock is sky high.  i am guessing his hammy injury pops back up.