The Navy football team has had only one winning season in the last 10 years and Coach George Welsh wants to change things.

He is contemplating changing his offense and he is shifting players this spring, trying to find a combination that excites him.

"We've got some athletes here, we've just got to get them in the right positions," Welsh said after the first major scrimmage of the spring.

Two players definitely in the right positions and who will have to carry much of the offense this fall, are quarterback Bob Leszczynski and tailback Steven Callahan.

Those two dominated Saturday's scrimmage. Leszczynski completed seven of 12 passes for 182 yards and two touchdowns, both to wide receiver Phill McConkey, one was for 70 yards.

Callahan ran 69 yards in 19 carries.

Two seasons ago, Leszczynski completed 53 percent of his passes for 1,154 yards, had only four interceptions and was being compared to former Mid All-America Roger Staubach.

Leszczynski slumped last year and the Mids (5-6) lost to Army, the first time that has happened in five years. Leszczynski completed 49 percent of his passes for 1,509 yards and threw 17 interceptions in 1977.

He has looked sharp this spring. One reason is a change Welsh has made in the offense. Last season Navy used a wingback, usually John Kurowski. He was not fast, but the Mids split him wide on occasion.

This season, Welsh is experimenting with a straight pro-type offense with two split receivers, McConkey, last year's leading receiver, and speedster Sandy Jones.

That gives Navy speed in receivers and with Callahan at tailback the Mids could have as much speed in those three positions as any team.

In his usual way, Welsh downplayed any possible changes in the offense. "We're looking at a couple of different things," he said. "I don't know what we'll end up with in the fall."

Welsh does not want to end up throwing the ball every down, though. That's why Callahan is so important. The Mids haven't had a breakaway runner of Callahan's caliber since Cleveland Cooper, but Callahan is not as durable as last year's workhorse, Joe Gattuso.

Gattuso, a plugger, gained 1,292 yards last season, most of it between the tackles. Callahan is expected to gain most of his yards outside.

"Callahan is running better now than he was at the end of last season," Welsh said. "He has his confidence back and he really looks good."

Navy lost 12 starters from last year's team, including three of its secondary.

"We have to find a secondary and an offensive line and right now we've got a young team with a lot of guys who don't know what it's all about," Welsh said.

Gregg Milo is the only returning starter in the secondary and he is currently working with Kip McCulley, Chuck Zinger and Chris Boblit.

Bob Wilson, a wingback last year, also is getting a lot of time at cornerback.

A two-year letterman as a safety, but a nonstarter last year, Joel Ross, is recovering from knee surgery and has been held out of spring drills.

Navy also is without its two top fullbacks. Last year's starter, Larry Klawinski, is playing lacrosse and Dave Walker has a broken wrist.