Learned what exactly? How to score and attack? 40 bloody goals in 33 games and with relegation level attacking stats in chance creation and shots on goal. How to defend? We tend to fall apart the minute we go up against any half decent attack and have been saved a ridiculous amount of times by De Gea playing out of his skin. Not to mention some of the embarrassing displays where we were completely torn apart by the likes of Wolfsburg, Newcastle(LOL), Arsenal and Spurs. I suppose he taught them how to aimlessly pass the ball and to bore the shite out of the OT crowd consistently.
This idea that LVG will leave some grand imprint on the club is bizarre, his brand of death by possession will be hastily discarded as soon as he leaves, namely because A.it utterly failed during his reign B.was horrendous to watch and has become the bane of most United fans and C. the managers most likely to take over from him play nothing close to his style.
Not to mention the fact that so many of our more exciting, attacking players have gradually looked worse and worse with far less focus on creativity and instinctive decision making as they play more games under Van Gaal.
Trying to credit Van Gaal with future success is just plain disingenuous, one particular Kinder Bueno fan tried to incessantly peddle this line of thought and it was consistently rubbished every time, he didn't create the current Bayern and Barca dynasties during a collective two year managerial spell, both occasions of which where he was unceremoniously sacked for failing to deliver and was criticized by several players/coaches/fans for his stubbornness and restrictive style. At the very least I can only hope to christ that he doesn't leave any 'legacy' here because we've already seen the fruit of his great 'work' during the last two seasons and most United fans want to never have to consistently endure that play style and performance level again in the near future.