In a few days, Alex Gaugert will be back in the middle of a fairway with a heavy tour bag in one hand and whatever club Erik van Rooyen hands back to him in the other. But over 36 dream-come-true holes this week at TPC Twin Cities, Gaugert and van Rooyen were not boss and caddie but early-round competitors on the PGA Tour. An added bonus: the former Gophers teammates were paired together by …