Pittsburgh Steelers: The Steelers lost four key contributors in Keenan Lewis, James Harrison, Willie Colon and Rashard Mendenhall. (Perhaps Harrison could come back.) But only one of those players (Lewis) was consistently available last season. The Steelers might have misjudged the cornerback market by signing William Gay before Lewis' price went down, but GM Kevin Colbert deserves the benefit of the doubt. Colbert needs a big draft and for his '12 draft class to come along.