?
I really doubt if Foster will ever be fantasy relevant again. Lewis had a nice run for a few weeks this season but Belichick has changed "passing backs" more often than he has changed socks. Of the two, I would lean more towards Lewis as a "keeper" due to his youth and the fact that he's not yet proven to be injury prone. But I would hope to have better "keepers" than those 2.
conley39
That depends on who your other options. Both are keeper candidates, but if it's between some one like Gurley, Robinson and L. Bell then no. If it's people like Crowell, Riddick and Jennings, then you do keep them.
LegFuJohnson
WELL DOESN'T THAT DEPEND ON WHO ELSE YOU HAVE TO KEEP???? AND DOESN'T IT MATTER IF YOU HAVE THE BENCH SPOTS AVAILABLE OR IF YOU WOULD BE BETTER OFF WITH PLAYERS FOR THE STRETCH RUN????