Wouldn’t surprise me - he’s not used to managing clubs with a historical ethics and identity to adhere to, and this job has come as a shock to him, IMO.
Would Pochettino come to Manchester? Perhaps, given Levy’s reluctance to pay the likes of Kane and Alderweireld proper money and the prospect of missing out on the top 4.
He’s not perfect and needs to be a bit smarter in the big domestic games (although his counter-attacking approaches in Europe vs BVB and Real were masterful), but certainly more of a United manager than Mourinho, and would embrace the challenge of developing talents such as Martial, Bailly, Shaw and Rashford, while having more power in the market to attract better players to supplement them.
His teams generally neglect orthodox wingers anyway, dependent on with from his fullbacks, so the abundance of inverting midfielders/forwards in the current squad would be of use to him.
Beyond him, there aren’t many good fits tbh; I’d like to see Frank De Boer given proper footballers, like he had at Ajax, and he’d get that at a club like United.