how about if New England retains the franchise rights on Mankins we trade them Faine and give Mankins a massive contract? NE might just do it to get some value for him
No way would they do that. Dan Koppen is a better center than Jeff Faine, and Faine is only a year younger, so it's not even as though he's got that going for him. I'm sure they would take some draft picks for him, but I don't think the Bucs would be willing to deal them any, nor would I want them to.