‘Centers, who turns 35 in June, had 43 catches for 388 yards last season for the Bills. But with Travis Henry and Sammy Morris showing pass-catching ability in the backfield, Centers became expendable. Robinson, who turns 33 in April, was third on the team with 102 tackles last season. But the offseason additions of outside linebackers Takeo Spikes and Jeff Posey squeezed out Robinson.’