Sam Webb reports that freshman OL JaRaymond Hall is exiting the program. Hall enrolled early and then redshirted, and while he was one of the lower-ranked guys in the class he was another bullet in the chamber at a tackle position that needs as many as it can get.
OTOH, Webb reports that Hall might land at Iowa State or Arizona, so maybe this is a situation where the guy already feels he's behind a large number of classmates. Michigan brought in Chuck Filiaga, Andrew Stueber, and Joel Honigford last year and then moved James Hudson to tackle in fall camp. If Hall was fifth in that pecking order, with little near-term path to the field on the interior, that might be enough to bail this early.
FWIW, this brings Michigan to 15 open spots for this year's class, with 6-7 potential fifth year players who are either not projected contributors or borderline. Two to four of those guys probably won't be back. Also, Mike Spath reported a couple days ago that Alex Malzone would graduate in 3.5 years and seek a two-year gig elsewhere. A class from 20 to 22 seems likely. Michigan has 16 commits currently.