Four successful managers who struggled at Premier League Clubs 

#2 Louis van Gaal- Manchester United

Louis van Gaal didn't do himself any favours at Old Trafford

Jose Mourinho is not the first manager to come under the microscope in the post-Fergie era at Manchester United, Louis van Gaal suffered the exact same fate just over two years ago.

The Dutchman was seen as the dream appointment for Manchester United, and on paper, he was. He was appointed by the club in 2014 following the departure of David Moyes, and made his presence known straight away by securing the services of Angel Di Maria and Radamel Falcao in his first transfer window at the club.

Unfortunately, those players failed to live up to their reputation, and United suffered a torrid start to their campaign, losing their first game 2-1 to Swansea before being humiliated 4-0 by League One side, Milton Keynes Dons in the League Cup.

He eventually steadied the ship in his first season at the club and despite not winning any trophies, would go on to secure a fourth place finish for the club, three places higher than David Moyes had managed in the previous season.

United failed to improve on that in their following campaign, missing out on Champions League football on goal difference to their nearest rivals, with Van Gaal reportedly being questioned over his tactics by players and fans alike.

He did manage to secure one trophy in his time at the club, seeing United to a 2-1 victory in extra-time over Crystal Palace, but that wasn't enough to keep the former Netherlands manager in a job, with the board letting him go just 48 hours after his victory.