Not-entirely-trollish suggestion: I think the World Cup should pause for ~3 days in between the group and knockout stages so people can fill out brackets.
Granted, mostly an American thing, but this is a very important mechanism for the NCAA tournament for bringing in casuals.
Dave Portnoy has a couple suggestions to fix soccer
“I am pro-soccer right now, I’m in World Cup fever... but I have a couple suggestions, make the nets 100x bigger, have power plays... I got a lot of things that I think soccer purists wouldn't exactly love hearing me say..." - @stoolpresidente
All the records broken by Lionel Messi today:
Most FIFA World Cup finals goals by a football (soccer) player - 18
Most FIFA World Cup matches played in by an individual - 28
Most matches won by a player at the football (soccer) FIFA World Cup - 18
Most minutes played in the football (soccer) FIFA World Cup - 2,489
We are witnessing history.