I think a football player that gets tired because he has to do some sport by beeing on the pitch for 90 minutes twice a weak is not worth his money. I mean honestly, these guys have a pretty good live, they train for 4 hours a day or maybe even less. And they earn wages up to 200.000 € a week. they can do something for that!
I don't think the game football itself has to be changed, it's the best sport in the world and couldn't be improved in any way. I've seen games from other decades too, and I found them pretty amazing. The match between Germany and the Netherlands in the WC 1990 8my first entire live football match
)...WOW such an amazing game!!! Or the extra time in the 1970 semi final Germany vs. Italy.... you just sit there with an open mouth and say "Wow...they played great football at that time!!!"
What should be changed in football is the things around it. It don't like the big business football is nowadays, people don't focus enough on the sport itself. They're just interested in David Beckhams new hair style, the weight of Ronaldo or who Patrick Kluivert smashed up last weekend.
Plus, the Calciopolli verdict has shown that such cheating isn't punished hard enough (good for us). Who will stop cheating and manipulating games after this verdict?
I also don't like the way new clubs emerge after the success of Chelski. Every rich dickhead wants to copy Chelski, such clubs have no heart and no tradition.
This is the things that should be changed, not the game itself.