Tampa's not going anywhere. Their attendance has dropped a bit thanks to their recent struggles, but they're still drawing 16k+ per game. If they can return to even mediocrity, they'll be right up over 18K again. They consistently outdraw LA and New Jersey (with a new arena even), but you'll never see anyone calling for their heads.
Other than the Phoenix situation, obviously, the league needs to do something about the Islanders before they attempt to fix any other problems.