#1 He has helped lift the spirits at the club
A team is always the reflection of its manager and nowhere was this more evident than at Manchester United with Jose Mourinho.
The Portuguese always seemed to have an eternal scowl, rarely smiling and having a negative air around him, and this rubbed off on the players, with most United players bearing long faces on the pitch and it apparently crept into the backroom staff also, so much so that Wayne Rooney had to voice out his concerns over the toxic atmosphere at the club.
A team built on such a negative atmosphere is doomed for failure and this was a crucial part in United's downfall, as nobody seemed to be enjoying their job.
By contrast, Solskjaer's arrival seems to have lifted everyone's spirits, as the Norwegian has always been an affable personality right from his playing days, always with a smile on his face (earning the nickname 'the baby faced assassin') and evidently he has carried on that affability into management.
The United players are enjoying themselves once more, no longer scared to make mistakes and this is in a large part thanks to Solksjaer's appointment as manager