Lewis can't be the guy. He is not even a capable backup. He drops the ball too much. If he would have been the QB the whole time be easily would have led the NFL in fumbles. He had 7 fumbles in 6 games, he tied for 11th in the NFL in fumbles in that limited play, that was actually the 6th most total (Matt Stafford led with 12 fumbles). If Lewis played the whole time he would have had 20 fumbles.
Bills QBs were 2nd in fumbles, EJ had 6 fumbles, for a total of 13 (Tuel just threw lots of INTs, no fumbles), Redskins had 14 (Griffin - 11, Cousins - 3).
Lewis should not be on the active roster.
By the way, we need a new PR, Leodis had 7 fumbles too.