Houston should fire D'Antoni. He is the not the right coach to handle Harden and Westbrook.
I thought the Knicks should've fired D'Antoni the moment they made the trade for Melo. They didn't. They wasted a bunch of time trying to be fair to D'Antoni even though it was clear he was the wrong guy for the job. Houston need to do better. Be proactive. And fire D'Antoni right away.
I get what you're saying, but do you believe Harden and/or Westbrook are capable of major changes to their approach? In fairness to D'Antoni, his ISO system enabled Harden and CP3 to nearly defeat the Warriors two seasons ago. Maybe I'm wrong, but I think it would be very difficult for a new coach to get them to buy in to a new approach. The two of them will believe that they can be an upgraded version of the recent squad.
For the record, I can't stand the Rockets style of play. It's completely unsustainable for long term success. That said, the Rockets have already gone too far down this road. Harden and Westbrook will need to fail together before the Rockets bring in a new coach.