Somebody would have go to the bench, and I suspect it would be Harmon or JB. Possibly Reaves. Unless we go small ball, which I would be intrigued to see.
Harmon will play point. Thompson/Bieniemy wing.
None of these guys will play 40 minutes.
Bieniemy will also pick up minutes spelling Harmon at the point.
Some guys may not be happy with their minutes. But if guys like Reaves or Williams or Bieniemy have to give up minutes to someone like Thompson, the team will likely be pretty good.
This is a good problem to have. It's called "quality depth".
It's what good teams have.