In advanced stats, Moss from UTSA, is of similar caliber player as Romad Dean. Similar style defensive player too.
Per Evan Miya, Moss is the best player from the UTSA team. He’s a good add, but not someone I’d expect to be a starter.
That used to be allowed but once the lawsuits came up that has resulted in the Wild West of transfers without sitting and NIL, schools and conferences basically have no control.
In theory, they probably could still do it but I doubt any would because then players wouldn’t come to your school...