Clearly we should go full Kathy Bates and hobble him so he can't leave, but assuming he does seeing him manage an international team would be fascinating for two reasons. Firstly, how he adapts his philosophies when he doesn't have access to the players as much (or how he he seeks to influence them indirectly). Secondly who he would pick, pretty sure that he would be unafraid to leave out supserstars who didn't fit what he needed. He'd have to find a national association who would tolerate him ruffling feathers in return for a shot at success. Easier said than done.