The overthecap number shows the cap implications for Tampa Bay. The Patriots paid the bonus money, so they absorb the entire dead money charge that was remaining. Tampa has no such worries; they are just on the hook for his base salary this season (and future seasons if they keep Mankins through the remainder of his contract, which seems unlikely).
He had both a high salary and a hefty dead money charge, so either way Mankins was going to take up a decent percentage of the salary cap. By trading him after 6/1, the Pats were able to roll over some of the dead money charge into next season, meanwhile still reducing their cap hit this season.
He had both a high salary and a hefty dead money charge, so either way Mankins was going to take up a decent percentage of the salary cap. By trading him after 6/1, the Pats were able to roll over some of the dead money charge into next season, meanwhile still reducing their cap hit this season.