I think people forget this easily and it's worth remembering... here are some of the All-Star and Hall of Fame players that Mike Brown has shared a locker room with in his career as either a Head Coach or Assistant Coach in the NBA before arriving in Sacramento:
Chris Webber
Ben Wallace
Mitch Richmond
David Robinson
Tim Duncan
Tony Parker
Manu Ginobili
Lebron James
Shaquille O'Neal
Kobe Bryant
Pau Gasol
Ron Artest
Kyrie Irving
Steph Curry
Klay Thompson
Kevin Durant
Andre Iguodala
Draymond Green
DeMarcus Cousins
That's a list which includes 6 players who stand out as the best of their generation (Kobe, Lebron, Duncan, Shaq, Durant, Curry). He hasn't just been a part of one championship run as an Assistant Coach, he's experienced that 4 times. That's starting out in training camp and going all the way to the series clinching win of the NBA Finals. 4 times. As an NBA head coach he's a two-time Coach of the Year award winner. There are only 3 other active coaches with multiple CoY awards (Popovich, Thibodeau, and Budenholzer).
I highlight all of that because I want to give context to this discussion. It seems presumptive to me that any fan is going to second-guess Mike Brown's methodology for dealing with player personalities, dolling out roles and playing time, and preparing his team to compete in the NBA. As a player, if a guy who has coached Kobe, Lebron, and Shaq (as a Head Coach) and Duncan, Curry, and Durant (as an Assistant Coach) tells you to work on something or demands that you earn playing time don't you think you ought to put your ego to the side and listen to him?
Or as a fan of the Sacramento Kings, having previously suffered through 16 straight losing seasons, you now have a Head Coach who inherited a 30 win team and led them to 48 wins in the regular season before taking the defending champs to Game 7 in the playoffs. And you're telling me that this isn't the guy you want on the sideline anymore? Already?