There is another factor. The Suns have historically been one of the
worst teams in the league in developing big men (for a long time).
Example? Ayton is not showing power in the post on offense, so
what do they do? Encourage him to take 3-point shots after
setting picks. And watch him do finger rolls rather than jams.
Big men might take more time to develop, but you must see
steady progress. And ours haven't shown it until they leave
the Suns. And find out where their skill sets level off.
With very few exceptions, the Suns have always been a
Guard and Wing oriented team. Just as they are now.
I am a really, really old timer. I was here with the Connie Hawkins Suns. And you're 100% right. This is nearly a mental thing that developed
after the Suns lost the Alcindor coin flip and became a forward-dominated team (Hawkins/Silas) then Guard/High Post (Westphal/Adams).
It is really interesting to look at how the Suns constantly looked for an identity---high post with Adams, later, kind of a guard/forward dominated team with Dennis
Johnson/Maurice Lucas, then the great KJ/Chambers teams with . . . who? Can't hardly remember the centers . . . then the KJ/Barkey team. Fast forward to D'Antoni and again you get the
reality that he doesn't have a center, so he used Stoudamire as a center in a run and gun. It really was a variation of the old Westphal/Adams teams cuz Adams played more like a small forward than a center. I suggest all of this was embedded in the team by Colangelo when he lost that coin flip and they still never learned how to play with a true big man (see the horrid season with Shaq--and yes, he was beyond his prime, but still, that was the worst of all worlds).