Pochettino is more tactical flexible, whereas Klopp has his team playing one style of football. I am not downplaying Klopp successes, but when you see how much Klopp has spend and compared it to Poch, you will understand that some of his achievements are down to signing talented players. Most notable, Van Dijk for a world record fee for a defender and Alison who both has completely improved Liverpool defense. If Pochettino signs a midfielder for a world record fee, his success will be equal or greater than that of Klopp in the same timeframe. Buying quality/right players improve team performance alongside having a good philosophy. Pochettino only a good philosophy as the board over there is not backing him like Liverpool is backing Klopp. Moreover, Klopp has been fortunate with injuries and I don’t know how they will get along if Mane and Salah were out for an extended period of time, whereas we saw that Pochettino was able to adapt without two of his best players. I agree that neither would have instant success, but they will build a better foundation for United to go back to the top of Europe.