I don't think we have enough people in the front office to keep up the "classic" Sens nepotism moves.
I mean, even if PD gets the President job, I seriously doubt they move Crawford/MacTavish into a GM role. Maybe Trent Mann, but even that seems too cheap for the Sens (I'm sure EM sees this as a challenge he'd accept though).
Best (realistic) case scenario: Real POHO, Dorion GM, MacTavish + other AGM, HC outside the org.
Worst case scenario: Dorion POHO, Tre. Mann GM, MacTavish + Crawford AGM + Tro. Mann HC
Middle ground, most likely scenario: Cheap POHO, Dorion GM, MacTavish AGM, Crawford HC