Armchair - if you really believe that La Liga is like the EPL you are living in cloud cuckoo land. The pace of the game and the physical nature of ours make it pretty unique. Conversely, La Liga generally has a higher skill level across the board and as far as I know, there isn't a team that punt the ball forward like some of ours do.
If your looking for close, you need to look at the Bundesliga, but even that really is no comparison.
As to your replacement managers and recent success, only Guardiola has had success there in the last few years, and why would he come to us when he's managing arguably the greatest club side in history, and managing arguably the greatest player?