Handling a partner who is too good for the game at hand

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Yeah, I would say nothing. Work harder than him. His ego will eventually make him work hard too!

This happens to me when I work DII and DIII baseball games with guys in my area who work DI. They sort of suggest they are "above" the today game. I just go out and work hard and have a good laugh when I don't hear a peep from either coach, but he get rode all day long by them! It happens almost every time. Coaches can sniff out that kind of arrogance in a second and will usually reward it with some good ol' fashion jeering!