The March backcourt rotation is going to be Diarra, Ball, and whomever the best on-ball defender is. It is an open question and there are several guys who can grab it if they are paying attention.
The front court is going to be harder to crack for guys not named Johnson, Reed, Karaban or McNeeley. There will be one guy to spell the non-center spots for an 8 man rotation.
If you're not one of the top 6, there are minutes to be had. We can win again with Ball as our weakest defender, he's no worse than Spencer was probably a bit better one on one. We need a guy to stop their best guard if that guy has size on Diarra. Either way it's a tough ask for him to be the lead ball handker and lead defender. None of our championship PGs had to do both.