#3 The tested and trusted trio
A keen observer would have noticed that in each of the two preceding systems in this piece, there was no space for the current best player in the world; Luka Modric.
The Croatian international has been nothing short of exceptional since arriving at Real Madrid in the summer of 2012 and his time at the Bernabeu has seen him win everything winnable at club level.
However, the cold fact of the matter is that at 34, Luka Modric is no longer the player he was and evidence of this was recorded last season.
Nevertheless, the former Tottenham man was an integral member of the most successful period in Real Madrid's recent history under Zidane and he played an integral role in the middle of the park alongside Casemiro and Toni Kroos.
So far in his coaching career, Zinedine Zidane has shown a fierce loyalty to the players he believes in and it could well be a case of tested and trusted' for the 46-year-old in the middle, with the only changes from his treble Champions League winning team being Eden Hazard for Cristiano Ronaldo, Courtois for Navas and Vinicius for Bale.
In this system, Casemiro would be tasked with doing what he does best: breaking up opposition play and winning back possession while Kroos would be in charge of distribution and Modric the link between midfield and attack.
After all said and done, each of these highlighted formations all have their usefulness and the performance levels of the current Real Madrid midfielders mean that they are all feasible.
Zidane would most likely deploy all these midfield systems at one point or the other during the course of the long campaign and his hope would be that his midfielders can step up to the levels expected of them.