I do not expect any of the FR to play much. It’s not a reflection of them. But there are just 200mpg, and you can probably count on one hand how many teams ever (not just UK) had their 11th-12th man average double digit minutes.
Our starting 5 will only be marginally better than our 2nd 5.
Let’s do the math without names. Whoever the starting 5 are, play them 24mpg. Then from Butler, Kriisa, Oweh, Brea, Robinson, the 2 of those not starting play 20mpg. The backup C 16mpg. Maybe you go small 6mpg, so the backup PF gets only 10mpg. That leaves 14mpg spread between the 3 FR. So you are talking about <5mpg for all 3, OR one plays more and the other 2 get just 1-3mpg.
I have predicted Chandler plays 6-8mpg, and the other 3 FR play 2-4mpg.
As for Sheppard, yeah he was better than 99% thought, but many had him way too low for him to be a 5* McD AA, they devalued him either because he was from KY or who our coach was or because of his race or they thought he was overrated due to his parents. So we should have expected him to contribute at least 15mpg.