I've made a statement before - and I'm guessing many others have - that no team coached by Mike D'Antoni will ever win a championship.
Do you think a D'Antoni-coached team will ever win a championship? If so, why? If not, do you think there's something he could slightly alter to make his system more successful, other than the obvious defensive improvements?
To win a championship using his system, a team would need such a perfect combination of speed, athleticism and talent that it just isn't plausible. The Suns came pretty close, but once again, they had all those qualities including a prime Steve Nash, Amare Stoudemire and Shawn Marion.
At this point, it seems D'Antoni's system is the problem, not the teams trying to fit it. He might fit well at the University of Oregon, making the basketball team more like the football team - doing really well but eventually losing to a good defensive team.