Injuries is probably the main concern, and since Sale & Paxton have missed more than 2 full years out of the last 3, it will always be a dark cloud hanging.
Bello, Whitlock, Houck and Crawford have all dealt with recent injuries, too. Pivetta has been the rock, but he also has the lowest ceiling of the 7.
Keeping 5 of the 7 healthy as much as possible is easier than 5 of 5 or 5 of 6, but we also need production from whatever 5 are going out there every 5 days.
Depth is a nice thing to have.
I'd prefer more quality than quantity, but this is what we have to work with, and maybe the deadline can give us a boost, if we haven't "found" the right 5 by then,