as for Haye... I don't think the 49ers want "depth" at NT. Fields and Sopoaga have been that behind Franklin. I feel the only way to address the NT position is to acquire someone that will make Franklin the "depth"
as for Wilson... FS is OBVIOUSLY a need position and I feel he's a viable option but I think the Pats will want to keep him. Also, don't forget about the addition of Jimmy Williams.