I was a little bit worried about "Who's got next?", since that's perhaps slang local to the United States. I am hoping that it will be translated idiomatically instead of literally.
Well then. The idea I feel is not lost. Charles could just pick who he wants from each national team, or take council with his sage staff. No arguing with that.
You should rotate through the captain's of all the national teams. Or one of their best players. I think that would help show and awesomely diverse the game is.