There's no guarantee that Miller will ever get the call up for game duty, but the 30-year-old will bring in a veteran presence who has a Pro Bowl nod and two 1,000-yard rushing seasons to his credit.
The 29-year-old could be a much better fit in Buffalo as the club only boasts a backfield of Devin Singletary, T.J. Yeldon, Zack Moss and Taiwan Jones.
With an established top tier and some young options revealing themselves last season, here is a look at where clubs' QB depth charts stand. Contracts and long-term outlooks do not factor in here; these rankings apply only to 2025 on-field capabilities.