Without intending to denigrate Zidane's managerial achievements just for the sake of being negative, I also think that this Real Madrid side is the perfect demonstration of the modern elite football team - it is effectively managerless and unmanageable. The only figurehead that can hold the players' respect is an ex-player of seemingly equal status to themselves, but he is merely the chief cheerleader - tactical philosophies or "systems" are jettisoned in favor of simply letting a collection of the most expensive possible talent express themselves. The manager operates through persuasion and diplomacy rather than through absolute authority. It is the ultimate outcome of the Bosman era.
Funny thing is that I don't root for Real and am way more affine to Barcelona than Madrid. regardless the hairstyles and media pomp = I rate Ramos as the best central defender and quite possibly the player with the biggest will power (pity he makes those nasty things on a regular basis) and I also rate Marcelo as the best left back (pity he makes those nasty things on a regular basis) and Kroos and Modric is just godly and the perfect symbiosis (not sure why Casemiro is there though..). And Ronaldo is still among the very best strikers there are, period.
Kroos and Modric were arguably the bedrock of the final performance. Pretty much any decent striker could have scored on Juve with those two opening up defenses and creating chances.
Ramos has an incredible knack for scoring goals at key moments in big matches, and he is clearly and outstandingly talented player. But he is also one of the dirtiest and hotheaded players you'll ever see. One wonders if both sides are merely different manifestations of the same combination of huge talent and an intense, passionate personality.
There are also cool-headed players at real (Modric and Kroos both fit the bill), but when I think of Real Madrid, I think of players who are both incredibly talented but also hotheaded, cynical and dirty - players who, at the climax of a match look just as much for a chance to kick someone or dive as to demonstrate their talent in more legal ways. Marcelo, Pepe, Ramos - even Ronaldo, though he is less a diver than he was in his Man Utd days.
Real Madrid are a microcosm of elite football in both its good (supreme athleticism and entertainment, narrative, passion, showmanship) and bad (financially doped to death, dodgy recruitment practices, bending all the rules to keep themselves rich and perennially winning, spoiled players who usually get the rub of the green and cry like babies when they don't, run by a combination of ambitious hucksters providing bread and circuses to the braying mob) sides.