He's leaving because he's not getting paid. He's been abundantly clear about that. Of course, it doesn't help that the coach sucks, but he would play for him regardless if he were paid. The thing is, I already said that like 20 posts ago, and you replied. Did you just forget?
No. You appear to still be trying to argue that Adams isn't leaving because of Gase, despite the undeniably clear statement to the contrary. I'm not sure what you're struggling with here - he doesn't want to play on a excrement team with a excrement coach for rookie money. He has said that he will play on a good team with a good coach for rookie money, or for our excrement team with our excrement coach for big money. As we appear to be willing to fix neither problem, he wants out.
Let's summarise here: he's the best player on a playoff calibre defense that was continually let down by the worst offense in the league despite that being the head coach's department and supposed expertise. The head coach has made no effort to work with him or even talk to him, numerous players on that unit have been mistreated and/or alienated by said head coach, the prospects for this season aren't looking any better. He'd be willing to suck it up and wait for the inevitable dismissal of that head coach as long as the team pays him to once again spend a season putting the offense on his back and that of his defensive teammates, and the team indicated that they would do that and then ghosted him and strung him along.
And this is his fault somehow and nothing to do with Gase or Douglas?