The bullpen was the only reason they nearly made it to the ALCS last season.
They could start Skubal, throw the other starters in the bullpen and have 3 bullpen days. Paddack might be okay of you only use him for an inning, Flaherty for 2 or 3, and Morton can go multiple.
Mize...never thought much of him. He's okay as a back end starter during the regular season, but I don't trust him in the playoffs. Picked #1 with a below average fastball who relied on a trick pitch to get college guys out.