Rob Jones watched Matthew Dellavedova slice through the lane and waited for the lob. The ball arched through a crowd of defenders, some his former teammates, and he hammered home a two-hand dunk that put the punctuation on a night that never figured to be so close. Not in these parts, anyway. Jones had 28 points and eight rebounds against his former team, and Saint Mary's (No. 16 ESPN/USA Today, No. 18 AP) survived a slow start to beat San Diego 84-73 on Thursday night for its 12th straight victory.