WR is definitely a need this offseason. There is no guarantee that Boldin will come back and be the same player. When a player starts to get to 32-33, the decline in ability can be gradual, or it can take a complete nosedive. If Crabs' contract demands are too high, the 49ers can't be taken hostage by his agent after the 14-15 season. The possibility of Crabs leaving is real and must be considered. Baldwin couldn't beat out an injured Manningham for playing time. QP has flashed potential and that's encouraging, but he may top out as a very good 3rd WR.
I like when the 49ers use 3 WR with VD as a 4th. As much as I love Miller, I hope the FB position starts to see a decreased role. With Lattimore coming in, I'd like to see this offense move to a 1RB/2TE/2WR set as its base package. My hope is Lattimore can run to the edges and run without a FB blocking for him. This provides good flexibility to run with power and also spread it out, using the same 12 personnel.
I don't know much about the draft class, but I heard it was deep in WRs. I really hope the 49ers take a bluechip WR prospect in this draft. It would be the responsible thing to do. Give Kap some speedy weapons so that he can succeed. This single high safety look that defenses love to play against the 49ers must be addressed. They only fear VD as the deep threat right now.