You're right about the rule, but wrong about the reason. The NFL only allows us to have one last name multiple times. We had chosen Williams but have decided to switch to Brown. The league allows us a year's grace period to get the number of Williamses down to one, which is why we cut Mario, IR'd Aaron Williams and plan to let Duke Williams walk after this season. Now, the question is whether they force Kyle into retirement or attempt to stash Jonathan on the PS.