I'm sure he will beg to differ. Won the league in the Netherlands, Spain & Germany. Three Champions League finals (one win), UEFA cup, domestic cups aplenty and he was just a penalty shootout away from making the World Cup final. I'd consider that to be a good managerial record.
Yes he good but they are all making out he is the best ever all because he has now taken over utd.
Van Gaal is a fantastic manager with a record that speaks for itself. I appreciate you don't like Manchester United, who here does? But that isn't reason enough to say he's overrated.
It has nothing to do with man utd. I think they have been very good concerning him (signing expensive players differing from what they did with Moyes).
He has done well at clubs but has also done poorly. His first spell in charge of holland he had a poor record. As he did in his second spell at barca. Also his later time at bayern he struggled and they finished third.
During the World Cup holland did better than expected, but I thought a lot of the time his tactics were very negative and could only use the pace of robben to counter teams. Against the likes of Mexico and maybe even Argentina (although I appreciate it gives messi more room) he could and maybe should have altered the team to attack more.
A big part of the Man United job is being able to handle the pressure, scrutiny, expectations, demands, etc. Moyes cracked under the strain. Van Gaal will not; he's been tried and tested before at the highest levels and had success. It's a smart appointment by them after the calamity of last season.