Despite acquiring half the veteran receivers in the NFL, the Patriots decided to keep Deion Branch for another year, signing him to a one year extension. I imagine the deal was probably for a relatively small amount of money.
It makes sense to keep him on the roster. There are question marks still swirling around each of the WRs the Pats picked up. Branch caught 51 passes for 702 yards last year. And even if all the new guys work out, Branch will see the field. He and Brady click so easily, and Branch is a fantastic possession receiver.