NCAA Event down to 8 teamsSAN ANTONIO, March 29 UPI)-- The NCAA Event field was trimmed to eight groups Friday night and three of them come from the Big 12 and Oklahoma signed up with fellow-conference member Kansas in the Elite 8 on a night that saw both big shock teams left in the tournament loss by the the East Region, Oklahoma outbattled Butler, 65-54, and Syracuse barely resisted an Auburn...