I write suspense fiction and I've done politics for a living.  Here's a scenario that occurs to me:

Jared and Ivanka want Priebus out of the way but Trum can't fire him without further alienating Congressional Republicans.  So they bring in Scaramucci, who so humiliates Priebus that he's driven to resign.  Then they get Trump to take Kelly as his new chief of staff, and the first thing he does is fire the Mooch.

Priebus is gone, and Jared and Ivanka can show clean hands.  But the chaos and infighting continue.  Proof of that:  the Washington Post story about how Trump personally dictated the false story about the Russia meeting being only about adoptions.  A major leak from close inside the White House.

Nothing changes, because Trump never changes.