These things are pointless! like comparing apples and oranges
Youll get the normal top 10 including mourinho and guardiola, but how can you say these guys are better managers than say Eddie Howe? Yes they might have a better win % but thats because they have only managed teams like Barcelona, Real, Chelsea, Inter Milan. Give them a team like Rotherham or Plymouth to manage with no funds and lets see how good they really are.
Mourinho has managed just one average 'real' club and that was U.D. Leiria, they finished 7th in the league (I think) and his win % was pretty bulk standard.
I havent seen the top 10 so withdraw all of the above if mourinho and guardiola are not in it