I am going to be optimistic.
Manningham should start practicing this week. He should be able to play in the game against Carolina on November 10 at the latest.
If he plays against Carolina, he should play the last eight games of the regular season. His presence really should improve the passing game.
My understanding that Crabtree has to be taken off the list he is on by November 19.
With any luck, Crabtree would be ready to play against Seattle and would be playing in our last four regular season games. His presence will help our passing game.
Entering the play-offs, assuming that we are going to make the play-offs, our starting wide receivers should be Crabtree, Boldin, and Manningham. I expect that Williams and Baldwin will be the back-ups.
That does not sound too bad to me.