The schedule is very helpful to the Tigers. Play a game, a day off, play a game, a day off, play 2 games, a day off, and a final game.
I'm assuming the Tigers are going with a one man rotation and then bullpen games. Wed and Thursday will be bullpen games. They have 11 pitchers for those two games so they should be all set and then if they have a game 5, Skubal can pitch on his 5th day.