Maybe more reason to keep Mia in as long as possible as she is the only true PG on the roster ready for this level. Boyd has merit as well. But the same is true for most positions. The best need to be in there for extended PT, esp in crunch minutes. IMO, UT does not need 4 freshman to produce at a high level for success this season. Mia is the exception, probably Civil also but not as urgent there as the PG position. Whatever they get from Prawl and Mya this year is a bonus.
The main nucleus this season should be Coop, Barker, Spear, Mia, Civil, Richardson and Latham (imo) and use the others like Boyd, Prawl, Wynn etc to be super subs.