Instantaneous success has been the watchword since the Premier League's inception with the likes of Chelsea, Manchester City and United all throwing megabucks at players to ensure success. Pochettino also swapped things around after Tottenham's 1-1 draw at Brighton, bringing back Alli, Davinson Sanchez, Kieran Trippier, Michel Vorm and Eric Dier.
Pochettino said Spurs have made major strides in recent years even though they had failed to clear the final hurdle and win a trophy.
Pochettino had spoken before the match about how winning the FA Cup would not change the club, stressing the greater importance of the Premier League and the Champions League.
"To compete in this type of game, I think we are ready to compete - but win is different".
Mauricio Pochettino will consider disregarding next season's FA Cup by fielding Tottenham's kids in the competition.
'Then we stop to arrive in this situation (of being questioned about not winning trophies)'.
"It was a big game and they are playing at Wembley, which looked after itself - the attitude".
United and Chelsea have acquired a win apiece this campaign and the prospect of a final between them appears a distinct possibility.
Dele Alli broke the deadlock for Maurico Pochetinno's side in just the 11th minute in what could have been a long afternoon for United. Nevertheless, the move paid off with Sanchez bagging his sixth goal in five FA Cup ties at the stadium.
He chased every loose ball, pressured Spurs defenders and set the tone for his teammates.
And he did so again on 61 minutes when his tenacity created the opening from which Ander Herrera scored to put United 2-1 ahead.
It would not be a surprise if more players followed him out of the door.
Mourinho said Pogba had shown what he is capable of in Wednesday's 2-0 win at Bournemouth after being substituted just four days earlier in a shock 1-0 home defeat to West Brom that handed Manchester City the Premier League title.
Every striker suffers a dip in form, and it was inevitable that Kane's goal rush would slow at some stage this season.
After the final whistle at Wembley, Pochettino told the press that Tottenham needed time to grow, develop and succeed, with him "or another" at the helm, suggesting that he may yet be replaced.