I think the top of the server problem is a tough one. I am really lucky to have always been in the same level league (have faced a couple 1 level above in CL)
When I get to the point where there aren't enough of my level I will have to decide: stick it out with the teams there or give it up and jump down. My preference is to stay with the team I have built for so long, but one of my favorite rivals already Took Over a lower level team.. if many managers make that choice the top of the server people will have less competition, more server holds, and mixed leagues. Until I get there I don't know, watching spornybol though you inspire me to try to stick it out.