Your opinion appears to be that the foundation is a player.
My opinion is the foundation is the philosophy of the team (players, coaches, management) and everyone must be on the same page. This year has been very successful in changing the minds of what people who matter (i.e. other NBA coaches and players) think of when they hear Toronto Raptors. Toronto is no longer a joke and if you don't bring your game, they are going to beat you.
Successful teams (i.e. championship and deep playoff runs) are built on more than talented players. They are important, very important, but they are not the only important ingredient in the recipe.
You just mentioned all of the players and declared some of them as "pillars".
Succesful championship teams are built on talented players with championship intangibles.