In England, there is unlikely to be many people that know the new Manchester United boss better than current Derby County manager Steve McClaren.
The former England manager came up against him both in Germany and Holland, and was more than happy to share stories of his past with Van Gaal despite being in the middle of preparations for the play-off final this Saturday.
'I've come across him many times and remember every game,' said McClaren. 'He's actually the only man I've given flowers to.'
'He was with AZ while I was with Twente, they were first and we were second they had won the league the previous week with two or three games to go.'
'We had to win the game to finish second. We thought, he's won the league - we'll shower him with good wishes and try and get him in a nicer mood and his team a little more relaxed than normal.'
'So I gave Louis a bunch of flowers. We won 3-0. That got us into the Champions League.'
The former Manchester United assistant also gave Van Gaal credit for the modern day Bayern Munich. McClaren added: 'He's great. I came across him in Germany with Bayern Munich and the way they are playing now - he started it.'
'He's a very good coach, very good manager, knows what he wants. He's done it at every club - Manchester United is the perfect fit for him.'
The words will be encouraging to Manchester United supporters, especially as many will want to see the likes of Januzaj, Jones, Smalling and Co being coached in the right manner in order to aid their progression.
Under Moyes, Dutch fitness expert Raymond Verheijen blasted Moyes for both his treatment of Van Persie and his 'dinosaur coaching' methods. The claim from the Dutchman could have been completely off-the-mark, but comments like that are unlikely to do any good to the reputation of the club, and the manger.
Regardless, life under Louis van Gaal could well be like Steve McClaren said: 'a perfect fit,' and United fans can be hopeful that 12-months down the line, they will have their 21st Premier League title in their trophy cabinet.