I think regular midfield football at United would appeal more than his current role at Spurs though, without mentioning his salary doubling.
I don't think that's fair; they're not far off, but to win the league they have to either invest heavily in a few quality rotational options, or completely abandon a European campaign.
The intensity Pocchettino demands from his players every game requires depth, or competitional priority; Arrigo Sacchi's great Milan side only won 1 Serie A in his 5 season there, despite being widely regarded as the 'best' team in the league. Spurs are the same; they have had the best attack and defence over the past 2 seasons, and accumulated the most points, but struggle to find that little bit extra that makes the difference in a league campaign.
Don't forget how draining the Europa League is too; United won it last season to the detriment of the league campaign. It's a competition who's winners are seldom domestically successful, and Spurs have found themselves in it until relatively late for the past few season.
They're trying to do things the 'right' way, in terms of ethics and priniciple, but perfectionist Pocch will have to embrace more pragmatism next season if he wants to completely neutralise the budget gap that he's so far managed to bridge significantly. If I were them I'd go balls deep in the Champions League, but if they drop into the EL again in the new year they should treat it as a youth competition.
If Spurs had a Chelsea-esque, Europe-free season, they'd win the league at a canter, even without needing to spend hundreds of millions like the Manchester clubs (who they've already easily eclipsed in the past few seasons, despite the relative lack of investment)