I honestly might consider trading Cade (with a new GM/coach of course) and just fully reset thing and get rid of all the bad juju of this core. Keep Ausar on the rookie deal, keep Duren with his age, but just move everyone else and start over with a pile of draft capital. Like if if they called OKC and got like Williams+3 FRP. 4?
Because Cade is in year 3 and I'd be very afraid he plays for the QO in his year 5 over signing an extension. Like there's no way he's signing an extension this off-season right, even though he's eligible? So you'd actually just have 1 year to turn things around before Cade just takes all the leverage away from you and plays on a QO. Seems super unlikely, especially if they don't move on from this staff.
Start next year with Ausar/Duren/a hopeful top 3 pick, a quality asset from some team (Franz?Williams?Keegan??) , a warchest of picks, along with a fully new regime. Sell off Ivey/Bojan/Beef Stew. Get whatever you can from Bagley/Wiseman/Burks. I'd feel much better about that future than Cade heading into his year 4 season without an extension and experiencing one of the worst calendar years for a professional team in NBA history.