People comparing our situation to the Bucks in the NBA as well is pretty far off the mark. The American sports system is well set up to keep it fresh, old teams who were awful have a chance to be good again in 5-10 years time, likewise strong teams can drop off.
Jack had two paths, take Villa as far as he can and be a major reason why in 5-10 years we might be a top top team (Most of our success would likely come after him though) or try and win whatever he can now, CL, Ballon D'or etc but clearly have to be away from Villa.
I'm not sure you'll find any footballers who fit in the first one of those paths anymore, I think them days are long gone. As I said before, he will go on to win things, it's impossible not to at City and truth is it makes no difference if Jack is there or not. I'm still convinced that when all is said and done, nothing can top the feeling he had when winning the play off final with Villa, no matter how small it is when you do it for your own it's just different.