I absolutely agree that Pochettino has hugely improved many players. Likewise I'm aware that Spurs were in a mess due to poor manager selection. However I still maintain that you can't point to one of those United players who had the potential of Kane, Erikson, Walker & peak Dembele. Can anyone really say irrespective of manager improvement that Schneiderlin, Depay, Darmian, Schweinsteiger, Januzaj, Carrick, Rooney, Fellaini, Blind, Young, Rojo, Jones, Smalling & Valencia could be great players in a title winning team?
I absolutely believe the likes of Rashford, Martial, Shaw, Herrera & Mata would be very good squad players to have, but can you really say that Valencia could perform like Walker under Pochettino? Or that Schneiderlin could perform like Dembele? Or that Januzaj could perform like Erikson? Could Rojo perform like Verthongen? Could Rooney have been revitalised to perform like Kane? Of course not.
The likes of Depay, Januzaj, Rojo, Schneiderlin & Darmian simply weren't or aren't good enough. The likes of Rooney, Schweinsteiger and Carrick were simply past it. Then you look at the likes of Valencia, Young, Smalling, Jones, Shaw, Herrera, Mata & Fellaini... Do I believe Pochettino would be getting much more out of them? Maybe slight improvements to some of them but I can't see those players capable of huge improvements.