Re: Sports rule changes you want to see
I think for Soccer, changes need to be made to make use of technology in the game. I'd like to see full implementation of goal-line technology to determine whether the ball has crossed the goal line on close calls. I think eventually they could come up with something to deal with offsides too, maybe involving RFID chips sewn into uniforms and one placed in the ball so that offsides can be determined with more accuracy.
Another idea I think would be good would be useful in World Cup play to discourage cynical play by giving teams that have accumulated a certain number of yellows a "general yellow card," whereby the next player who commits a yellow card worthy foul automatically gets a red card, regardless of whether they have a prior yellow. While it seems like the various pro leagues have been working to cut down on negative play, it still abounds in the World Cup.
"I don't classify 'em, I just pacify 'em." - George Foster.