People clamoring for Sullivan to be fired are going to be sorely disappointed.
First, a lot harder to fire someone during the pandemic. It took Hextall and Burke a week to be able to be in Pittsburgh, and they're not around the players. You think the Penguins are going to stash someone in a hotel room for 10 days before pulling the trigger? What about assistants? And if you dislike Sullivan, do you really want Reirden or Vellucci taking over?
Even if they do fire, who are you going to get midseason? Gerard Gallant? He's never lasted more than three seasons with a team and has only one season where his team won a playoff series. Hextall's only coaching connections are to Craig Berube and Dave Hakstol. Burke's coaches have been Marc Crawford, Randy Carlyle, Ron Wilson, Bob Hartley and Glen Gulutzan.
So it's not like they have ties to active coaches who they know and could drop in without a serious interview process.
If Sullivan were to get canned, this franchise needs a real coaching search. Only way to do that is in the offseason.
It's far more likely you'll see player movement. Their testing is tracked, and short of a trade with a Canadian team, there won't be as many quarantine issues. My sense is Hextall/Burke are more likely to start remaking the team via the lineup before touching the coaching staff midseason.