Despite what the record books say, it wasn't always plain sailing at Manchester United under Sir Alex Ferguson.
They ruled the Premier League during the Scot's tenure, but had periods where they had to accept they were second best. Arsenal had their moments in the sun, Chelsea looked unstoppable for several seasons when the Roman Abramovich billions and Jose Mourinho arrived.
United though kept coming back - time and time again. Ferguson was able to rebuild his squads, adding quality annually, bringing through young talent along the way. It meant the United stayed very much relevant and, more importantly, competitive.
