Ole Gunnar Solskjaer can be hugely proud of the way he's improved Manchester United since replacing Jose Mourinho as manager last month.In the Norwegian's six games in charge, five of which coming in the Premier League, United have scored 17 goals and only conceded three.Each of those six games ended in victory for the Red Devils, with last weekend's 1-0 win against Tottenham at Wembley easily the most impressive.United are now just six points behind fourth-placed Chelsea and back in the hunt for the Champions League places, which didn't seem possible five gameweeks ago.So what's changed exactly? United were vulnerable at the back and passive going forward under Mourinho, who became renowned for his defensive style during his time in Manchester.But with Solskjaer, who believes in attacking football, United haven't looked so dangerous in the final third for a long time.Defensively they look a lot stronger, too, now that David de Gea has rediscovered his best form and Victor Lindelof has started living up to his potential at centre-back.However, what's changed most at United under Solskjaer is the happiness and belief amongst the players.Paul Pogba and co. were unquestionably unhappy with Mourinho as their manager, whereas they seem a lot more united with a club legend guiding them.Solskjaer has given United players and fans reason to be positive again, and now former striker Louis Saha has summed up that feeling with a relatable tweet.

"Was just chatting with my bro [Quinton Fortune] and told him I'm glad Ole gave the club our spirit and style back and finished by Oleluyaaaaaaaa," wrote the Frenchman.

Saha's right - Solskjaer has brought back United's mojo that was born under Sir Alex Ferguson but went missing during Mourinho's reign.

And long may it continue.