Why not? Perhaps not quite 64, but almost certainly over 60.
Jake and Andrej will be on the floor together pretty often. I don't think you accounted for that possibility.
Vaaks averaged 31 mpg last season.
A sampling of 5 star freshman guards last year, suggests 30 minutes from Coleman is not crazy.
Mikel Brown (29 mpg)
Brayden Burries (29 mpg)
Kingston Flemings (31 mpg)
Darrius Acuff (35 mpg)
Darryn Peterson (29 mpg)
MPG is always a noisy stat anyway, because you don't get penalized for games in which you don't appear.
There will be minutes for the other freshmen, but they are likely to be hard to earn. I think Morillo will have a role, but I'd be surprised to see 15 mpg.