It's fair to say Manchester United have already seen the real Louis van Gaal at Old Trafford.
The Dutchman has brought results to the Premier League giants simply with his aura - but there has also been the inconsistency of his previous regimes.
Most of all, Van Gaal has brought his stubbornness to United, something that has let him down hugely so far this term.
For everyone has seen the difference between Manchester United with three at the back and four this season. If the fans in the stands can see it and are chanting for '4-4-2,' there is no excuse for one of the world's most experienced managers not to see it.
Van Gaal has often reverted to a back four during a game - but why start with three in the first place? With his insistence on pursuing his seeming brainchild, the 63-year-old has done himself and his side a disservice.
While the Old Trafford outfit have looked slow, disjointed and completely nonthreatening while deploying three at the back, Liverpool have excelled with that system. It has been a plague for United but a saviour for Brendan Rodgers.
So much so that the change in formation has saved the Reds' whole season.
If Van Gaal was interested purely in good football and results, United would have been a different prospect by now. But the Dutchman is clearly determined to make a back three work at Manchester United, just like he did with the Netherlands at the World Cup.
It is holding him back. It is holding the club back. But the fact Liverpool have had such success with it might irk the 63-year-old enough to convince him to pursue it even more relentlessly.