Losing by 20 to the Twolves? Really?
You've lost 10 of 12. The last quality win was a month and a half ago. Since that win, the team is 6-13. The schedule was soft in the early part of that and the wins have come against Brooklyn (2), Philly, Denver, LA, and Orlando. You just lost by 20 against one of the worst teams in the league.
Wittman isn't the entire problem, but to me, this is exposing that overall, he is a problem. There's zero chance of him getting the full amount out of a team. He's an old school, hard headed, "we take open 18 footers" coach. This team is talented enough in an overall weak conference that when things are going well, he doesn't look like an awful coach. But he's going to get outcoached most evenings.
Beal being out hurts. Temple getting his minutes means less spacing on the court, less players that can create for themselves/others, and of course more perimeter shots going to a worse shooter.
They have a lot to figure out.