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The picture above explains a lot.
Steve Kerr is feeling good enough -- and has enough energy and fire -- to get off the bench and passionately argue with a referee. That's because he's in a much better place than he was the last couple of years as it relates to the health complications following back surgery in the summer of 2015.
Tim Kawakami of The Athletic just wrote the comrephensive feature on Kerr's health and what it all means for the Warriors.
The best quote probably came from Nick U'Ren -- the Warriors' Director of Basketball Operations:
"You think about the pressures and demands a head coach is under, and he's got a wife and kids, he doesn't want them to see him in pain. He doesn't want his players to see him in pain.
"You think about the pain he was under plus having to lead a group of men and lead a team and lead one of the best teams in the NBA. It's amazing that he was able to do it all, manage it all. He's a tough, tough S.O.B., that's for sure."
Shaun Livingston also weighed in on Kerr's progress.
"It's kind of under the radar because of all the other stuff that's going on," the three-time champion told The Athletic. "But I notice that he has his physical therapist, one here, one on the road traveling with him. I think it's paying off.
"The consistent work is kind of accumulating, you know? I think he's feeling better mentally, too ... he looks just more normal. Doesn't look as pale and stressed and all those things that come with it."
Golden State is 25-13 this season, and it sounds like Warriors fans are more stressed about the record than Kerr...
Drew Shiller is the co-host of Warriors Outsiders. Follow him on Twitter @DrewShiller