COACH DENT: Former Yankees manager Bucky Dent is coaching the Coral Springs (Fla.) all-stars for the Junior Olympic Baseball Super Series in Coral Springs, which starts Friday. So far the job has primarily involved hitting infield and pitching batting practice.

"He's a serious guy. Smart too," said Scooby Morgan, 15, a pitcher and first baseman. "The way he talks, you can tell he knows what he's talking about."

With limited practice time, Dent is taking a crash course in learning names. "We got to put them together real quick," he said. "Hopefully we have enough talent to compete. A couple of guys have caught my eye."

LES IS LESS: Les Lancaster, the most effective middle-relief pitcher a season ago when the Cubs were division champs, was optioned to the team's AAA club at Iowa.

To take Lancaster's place on the roster, the Cubs bought the contract of RHP Kevin Coffman, who was 9-8 in 23 starts at Charlotte and Iowa this season.

Lancaster was 4-2 with eight saves in 1989. His 1.36 ERA was the lowest among major league relievers with at least 50 innings of work. But Manager Don Zimmer was unhappy with him this year when his ERA ballooned to 5.28, although he was 7-5 with five saves in 45 games.

MOVES: Cardinals LHP John Tudor, who leads the NL with a 2.45 ERA, was placed on the 15-day disabled list because of a shoulder soreness. To replace him on the roster, the Cardinals recalled RHP Omar Olivares from Class AAA Louisville.

Tudor (11-3) also leads the NL with a .786 winning percentage. He left his last start after two innings and had been scheduled to start Saturday after seven days' rest.

Olivares was 10-11 with a 3.82 ERA for Louisville in his first year in AAA. . . .

The Pirates recalled RHP Mike York from AAA Buffalo to pitch in today's twi-night doubleheader in Cincinnati.

To make room for York on their 25-man roster, the Pirates optioned RHP Mark Ross to Buffalo.

York was 8-5 with a 4.54 ERA in 24 games, including 23 starts, at Buffalo. He is considered one of the hardest throwers in the Pirates organization and has spent the past two springs in their spring training camp. . . .

The Reds recalled LHP Rosario Rodriguez from AA Chattanooga, filling the roster spot vacated by Danny Jackson (15-day DL, shoulder pain).

Rodriguez is to join the Reds in time for tonight's doubleheader. He has appeared in 36 games for Chattanooga, posting a 2-2 record with seven saves and a 4.36 ERA. . . .

The Braves activated SS Andres Thomas from the 15-day DL and optioned IF Mike Bell to AA Greenville.

Thomas, batting .208 with four homers and 13 RBI, was placed on the DL retroactive to July 30 with a sprained left wrist. Bell hit .167 in 13 games for Atlanta.