While the money that can be saved by cutting Mario Williams has been well documented, in analyzing the Buffalo Bills' 2016 salary cap, a Charles Clay roster bonus conversion should be mentioned in the same conversation.
It has been reported ad nauseum that the Bills have a large amount of money committed to their 2016 salary cap. While the exact reported numbers vary, the general theme is that the Bills are, if not in cap jail, definitely on cap probation. Where most writers/ reporters have acknowledged that the Bills can clear $12.9 million in cap space by releasing Mario Williams, few, if any, have also mentioned that the Bills can clear another $7.