3 key takeaways for Manchester United after their capitulation against Sevilla

#1 Mourinho needs to change his tactics

Mourinho's tactics have come under severe scrutiny

Pre-match, Manchester United legend Rio Ferdinand urged his former side to 'come out' fighting on the front foot' after Jose Mourinho's team escaped from the Ramon Sanchez Pizjuan Stadium with a 0-0 draw two weeks previously. "You don't want to pay too much respect to them, they don't deserve it, they're not good enough," proclaimed Rio Ferdinand.

The Portuguese showed the five-time Europa League winners a tremendous amount of respect in the first-leg, tasking Scott McTominay with man marking the fading Ever Banega, and Sevilla had lost two games at home, conceding seven goals in the process, coming into the second-leg.

Marouane Fellaini's inclusion in the second-leg also sent the wrong message. Naturally, United went long as a result and Fellaini's presence brought out some bad habits in his team-mates. Manchester United's muddled approach cost them, and played right into Sevilla's hands.

This negative approach is not helping him win fans over and the United faithful will ultimately want more ambition from their team. As Mourinho approached the Stretford End tunnel on Tuesday evening, he appeared to be specifically booed by sections of the home crowd.

It is a crazy thing, asking a manager as successful as Mourinho to just "change his tactics". This is what has worked for him in the past. This is what has helped him lift trophies. But the problem is - it is no longer working for him. His team hasn't yet assimilated the tactics yet into their gameplay, like his teams of the past.

Right now, it seems to be a matter of time before the accusations of negativity that ended his Chelsea and Real Madrid tenures begin to resurface.