Rain washed out Maryland's scheduled football practice yesterday, but it also gave Coach Bobby Ross extra time to review on film the significant contributions made by several substitutes in Saturday's scrimmage.

Quarterback was one position to which Ross was paying particularly close attention yesterday. But he said he had not met with his coaches to decide who would back up starter Stan Gelbaugh. Ross said he would not announce the decision at least until he had talked with all three candidates sometime today.

There were indications earlier in the week that Ken Vierra, the fifth-year senior from Utah, might have moved ahead in the competition. But Ross said all three quarterbacks -- Vierra, sophomore Dan Henning and redshirt freshman Drew Komlo -- played well in Saturday's intrasquad scrimmage.

"The most significant thing right now is how the players on the second and third teams have come along," Ross said. "It's been a real pleasure to see them play so well. They may not be in position to challenge for a starting spot, but it makes the competition (on the team) tougher than it was already. And it also improves the depth."

Ross cited redshirt freshman fullback Keith Bullock, senior offensive guard George Colton, junior defensive guard Tommy Parker, sophomore defensive guard Rob Klein, junior outside linebacker Steve Kelly, sophomore offensive lineman Bill Hughes and sophomore safety Dan Swingle as being among the nonstarters who are making an impression.

Ross said he and his staff might take a few more days to decide on a No. 1 center, the only starting spot undecided as Maryland today moves into preliminary preparation for the Sept. 7 opener against Penn State.

Usually when it rains, half the team practices in the school's armory and the other half works out in Cole Field House. But the armory is being prepared for fall class registration and Cole Field House isn't big enough to hold the entire team.

"I wanted to get some things done. We would have gone through some two-minute drills," Ross said. "We can't afford to miss any more than this one."