Newcastle did just that in February a year ago when United left Tyneside on the wrong end of a 1-0 scoreline thanks to Matt Ritchie's strike.
United were an eye-watering 11 points off the pace when Mourinho was sacked, but Herrera is not allowing his mind to wander from the here and now.
"I am not going to compare".
There's still a lot of work to be done - United are still six points away from the top four - but it has still been a very encouraging start.
"(Newcastle) is not easy at all.
"It's one game at a time, though, and the day they announce the next manager, if it's me or someone else, then good luck to them".
Sanchez endured a torrid 2018, scoring just four goals in 30 appearances after his lucrative January transfer from Arsenal, but Solskjaer believes the Chilean will fit perfectly into his plans. But we are in a good moment.
"Obviously they have won a couple of games now and have more happy people around, but when you are winning, that is normal, it has to be like that". Let us know in the comments section below. Even the ones that were on the bench.
Newcastle boss Rafael Benitez admitted his side were punished for mistakes, saying: "We made a mistake for the first goal and after, when doing better, they scored the second on the counter-attack". That was my last game, we lost an FA Cup final [against Chelsea in 2007].
Royals are massive underdogs going into the FA Cup third-round clash at Old Trafford, have not won in 10 games and are one place off the bottom of the Championship. They have all performed and as long as they perform, they should always be given a chance.
Solskjaer has had an impressive start to life as United coach, leading to further speculation that he could be offered the job on a permanent basis next summer. "I just want to keep improving on that", Rashford said.
But as a temporary boss, for now, Solskjaer also stressed that the most important part of his job is not planning for the future with transfers, rather working with the existing squad for results.
"The club's probably had a plan", he said.
"He's playing really, really well, not only with the ball".
"It's very frustrating that I could not make it memorable like last time".