Let him walk. This team can't afford to pay backups. There is no cap room for that. They are going to have to extend Rousseau soon. And they have Miller under contract for a couple more years.
Let Davis, White, Poyer, Lawson, and Epenesa go this offseason.
Hopefully extend Jones.
If Dawkins keeps playing this well I'd extend him now and free up some cap space to make a move for a WR before the deadline. He's played good football. Far better than last year.
Draft WR,OT, Safety, DL in first four rounds.