Crowell or Lewis? (1 Viewer)

In a PPR league, my roster is:

QB: Brees

RB: D. Johnson (AZ), Hunt, Martin, McKinnon, Crowell

WR: Thielen, Kupp, Funchess, Tate, Corey Davis, Martavis

TE: ASJ, Henry

Dion Lewis is available on the waiver wire.  Do I pick him up?  Seems like he might be about to take control of the Pats' backfield.  I'm thinking of dropping Crowell to get him.  Crowell has certainly been disappointing so far, but he doesn't have as much competition for touches as Lewis.

I'd probably do it but what's your line up requirements? Both guys are probably never going to start for you if you have a standard line up. You might be better off with a lottery ticket like Conner, Breida, Foreman, C. West, Mack as examples since Lewis is really a JAG because of the way NE spreads the ball around instead of Crowell.