When stating that Klopp is some kind of magician able to transform avarage players in to World beaters, I think People forget his first season.
In his first season, where he took over in october if i remeber correctly, they where not very good, and Klopp didnt work any kind of magic with the avarage squad he inherited. They got spanked by the likes of West Ham, Watford, Swansea, Newcastle etc. They even lost at home to to United in a dreadfull LVG season.
They finished eight. They did produce some great performances on the way, like beating Dortmund in the EL, but by no means did Klopp just walk in and transform them, like it seems some expect/want Ole to. Since then he has spend 400 million pounds. I think Uniteds squad is better than the team Klopp inherited, but not by a huge margin. I think it is hugely unfair to compare Ole to managers that have had years to work on their squad, an actually didnt really do any better under similiar circumstances AS Ole.
I am not convinced that Ole is the right manager, but lets not pretend that other highly rated managers like Klopp just walked in and produced a huge turnaround from day one, without spending a cent. But i do think he should have the opportunity to actually buy players that fits his style before being written off.