If the ban sticks, there's no point in sacking Sarri. Chels aren't even candidates for the title or CL. No manager can change that so keep Sarri (and Hazard) if that's the case.
If the ban does not stick, I'd like a different manager. I don't trust Sarri's eye for talent. If Chels had a proper technical director who would have the most say in player purchase and sales, then I wouldn't mind another season of Sarri at all. For example, Jorginho can never be the key man right in the centre of the pitch in a PL side with (future) title aspirations. The whole Alonso thing, Kovacic, Higuain... Chels don't want to be Napoli. Napoli didn't win shit. You need to turn it up at Chels.
Whatever happens to Sarri, this squad is not the business. A confusing defence, a soft midfield and a pathetic front line. Hazard only with a year left on his contract. Same with Odoi. Two average strikers over 30. Chels still can't sign a proper fullback...