You would think so, but then you realize he's made 7th place with Team USA and told Bam Adebayo that he wasn't ready while playing Mason Plumlee. And he played Mills and Belinelli in the playoffs together after they gave up a 15 point lead, called time out and put them back in so they give up another 10-0 run which lost the series. Then gave Bertans away for free and signed Carroll, but doesn't play Carroll.
So there is a lot more evidence that he's just an idiotic coach than evidence for him trying to tank.