ASSUMING he becomes a free agent after this season...
I know it goes against the macho mindset of the NFL, but some team should really sign him and not play him until next December. Talk it through with him ahead of time: come to a contender who needs a jolt at RB, practice all season, rest up until December, then get a few games to warm up and chase a ring.
That would be smart management, if his ego would allow it. Can you imagine a 100% healthy McCaffrey joining the Bills offense in early to mid December of 2022, for example? Just one more weapon defenses have to deal with.