Almost every single coach, in most any sport, is not anything special let alone a genius, I think Lester might have made this point a while ago. The word genius and hardworking get thrown around too frequently so as to mean nothing...
There are, of course, outliers - certainly coaches like Riley, Phool Jackson, and Pops (though Pops is not quite the same genius without real stars, Auerbach as well - but he too had so much more talent that the rest of the league on a pretty regular basis.
But Thibs - good, solid coach, but this stubbornness thing is too glaring to overlook. As coaching is about teaching and learning and figuring how to motivate - to not change, to not try new things - is downright reactionary, esp. when your methods are so clearly not working.
And listening to coaches, GMs and team presidents talk - post games, in-games, pre-games, and interviews - there is nothing more superfluous and meaningless....
All that said - the disconnect between the FO Rose and Thibs is on Rose, and the roster construction for the coach you hand-picked is all wrong...so I put much of this on FO Rose...
And lastly, to reiterate a point Elephant has made many times - we need a fucking NBA quality starting point guard... I mean Rose's inability to get this taken care of, is up there with Gettleman's inability to build an O-line and Cash's inability to get a real shortstop...
The lack of a real NBA quality starting PG has had a domino effect on the whole team, and not in a good way...