Yeah, neither Cooper nor JBB are going anywhere for at least a couple of years. Neither is getting fired,.and the absolute earliest Cooper would be leaving is next summer. That would only be if he wants to leave as well and doesn't extend with the team, not because Vinik or JBB gave him the boot.
JBB will bring in some bottom 6 depth this summer no doubt, and maybe some on the blueline as well. In the end, the players play, and regardless of who he brings in, if Tampa's offensive stars want to phone it in come playoffs like they have the last two years, it'll be another quick exit next season. They're certainly not the only team with this issue, but after the overall improvements this season all around (aside from the power play, statitistoaclly speaking), they were.never going to gut the roster and make sweeping changes because of 3 or 4 poor games against Florida.
JBB needs to continue filling in the supporring cast, and some new voices/coaching philosophies or plans could be good, but the core 10-12,guys seems pretty set for the next couple of seasons, so whether Tampa makes another run or not, that's the group they've got.