Skubal, FA, Olson, FA/Mize/Maeda, FA/Mize/Maeda to start the season.
Jobe limits innings in Toledo in April and is bumped up to be the first injury replacement.
Montero, Gipson-Long, other prospects/projects in Toledo to be called upon as needed. Montero has shown glimpses, but just not enough to consider for a rotation spot out of camp. There's still time for that to change. Gipson-Long has a handful of MLB starts, coming off significant time lost. He'll need that time in Toledo. I would think Manning is out of options, but its tough to think he has much of a future with Detroit at this point anyway.
I get that there were a lot of issues this season. But there's not enough pitching. And if they do have too much pitching going into the trade deadline next season, move some to address other weaknesses or get back a prospect or two.