Yes, Coach K has ran a triangle, not solely, as i said, he has used it, he has used motion, he has used a perimeter heavy, he has used post. Coach K may be the best coach at adapting his style to his talent and meshing multiple systems. Its probably why he is so good at college, but also coaching pros in the Olympics. You also cherry pick quote. Coach K didn't say he hadn't ran the triangle, although one could say he's never been an offensive stalwart one way or the other, not on D either like Boehiem. He said he had no problem with the triangle, then went on to say NO OFFENSE EVER WON ANYTHING, that you in because you have championship level talent. He went on that the triangle is a solid offense, though its even better if you have a Jordan or Kobe who love it. He has won multiple titles with multiple sets and even different overall philosophies throughout the years. He adapts, its what he does. For years he focused on 3 and 4's, then when he beat butler, it was predominately a 3 point shooting guard team...he is the best at it, just like Izzo is the best at coaching up in the college ranks.
Well Coach K is under the impression He's never run a triangle..EVER, those are His words.
Maybe You can use your extensive knowledge to clear it up for him.