"I've changed my stance a little," he says. "Now I'm more of a standup hitter." By changing his stance and choking up less on the bat. Rivera gave himself more power. Batting fourth will give him more RBIs. As for the 19 SACs. Rivers says. "I think I graduated from that role last year."

Outfield: Only Don Allard is gone from last year's team. Junior Scott Vierra (.299) will move over from left to right. Senior Bruce Weller (.294) will play center against lefties and left against righthanders. Sophomore Paul Vallone (.194) will play center against righthanders. Juniors Chris McAndrews and Jay McNamara (.243) should also see some action.

Vierra will move up in the batting order from nine to five or six. He leads returning players in RBIs (24) doubles (six) and homers (tied with Maspons and Rivera at four). "I have to drive in a lot more runs," he says. "I'll just be looking to hit the ball hard."

Weller's batting average is deceptive. As leadoff man last year, he drew 47 walks, 21 more than anybody else on the squad. As a result, he got on base more than half the times he came to the plate. Despite his ability as a leadoff man, Nahigian will probably move him to the third spot against righthanders.

If he doesn't win a spot in the field, McAndrews may pinch run. 1984 Harvard Baseball Schedule MARCH Tues. 24  at Red Sox Farm Team Sun. 25  at Pittsburgh Farm Team Mon. 26  at Tampa University Tues. 27  at University of South Florida Wed. 28  at Red Sox Farm Team Thu. 29  at Red Sox Farm Team Fri. 30  at Red Sox Farm Team Sat. 31  at Red Sox Farm Team APRIL Wed. 4  BOSTON COLLEGE Fri. 6  UNIVERSITY OF CONNECTICUT Sat. 7  at Tufts Tues. 10  UNIVERSITY OF MASSACHUSETTS(2) Wed. 11  NORTHEASTERN(2) Sat. 14  *NAVY(2) Sun. 15  *PRINCETON(2) Tues. 17  at Holy Cross Fri. 20  *at Columbia(2) Sat. 21  *at Pennsylvania(2) Tues. 24  BRANDEIS Wed. 25  at Boston College Sat. 28  *at Brown(2) Sun. 29  *at Yale(2) MAY Tues. 1  at University of Rhode Island Wed. 2  at MIT Fri. 4  *CORNELL(2) Sat. 5  *ARMY(2) Sat. 12  *DARTMOUTH(2) Sun. 13  at Brandeis

* Eastern Intercollegiate Baseball League games