For Manchester United to win the league in the next three years is going to take a miracle. Like when Leicester won it.
Personally I’m more than happy to see top clubs suffer. Spreads the money around more.
United is not going to win the league within 3 years. It took a close sacking and 6 years for Ferguson to win the league.
It took these managers from first joining their club to then win the league:
6 years Alex Ferguson - Man United
4 years Kenny Dalglish - Blackburn
4 years Jürgen Klopp - Liverpool
2 years Roberto Mancini - Chelsea
1 year Arsene Wenger - Arsenal
1 year Pep Guardiola - Man City
1st season in charge Jose Mourhino - Chelsea
1st season in charge Carlo Ancelotti - Chelsea
1st season in charge Claudio Ranieri - Leicester City
1st season in charge Manuel Pellegrini - Man City
1st season in charge Antonio Conte - Man City
If you take into fact that both Ferguson and Dalglish won their titles at the beginning of the birth of the premier league, the stats prove beyond a shadow of a doubt that it takes roughly one year or less for a newly appointed manager to win the premier league (Klopp and Mancini being the exceptions to the rule). Therefore I can see from a club owners point of view that it is not unreasonable to expect their newly appointed manager to win the premier league in one year or less.
Transfer funds and wages does help a manager structure a team to win the league but that fails in United's case because they persistently out spent the other clubs on transfer fee's and in wages (were known to pay the highest player wages in the league) and yet every manager since Ferguson has failed to win the league.
So yes, based on the above stats I have no doubt the Glazers will be expecting Amorim to win the league within 3 years.