Chargers Put Plan B Pieces All Together : Football: Pat O’Hara, World League quarterback, signs on to compete for job backing up John Friesz.

The Chargers reached a contract agreement Tuesday with Pat O’Hara, backup quarterback to the Ohio Glory’s Babe Laufenberg, the once-upon-a-forgotten-time starting quarterback in San Diego.

O’Hara, a Plan B free agent from Tampa Bay who lost his starting job at USC to Todd Marinovich in 1989 after a knee injury, will join the Chargers at the conclusion of World League play in early June.

“We thought about drafting him last year,” said Bobby Beathard, Charger general manager. “Anybody who has seen this kid at work thinks he’s a heck of a prospect . . . Dallas went after him on Monday, but we were able to reach an agreement.”

O’Hara, who completed 13 of 17 passes for 95 yards last week, will compete with Bob Gagliano and Jeff Graham for the spot behind John Friesz. Graham played for the New York/New Jersey Knights in the World League of American Football last season. On Beathard’s advice, he chose not to return in favor working with the Chargers.

“We like the idea of O’Hara playing in the World League because he needs to play,” Beathard said. “(Coach) Bobby Ross has plans to go out and see him play in the World League, and then O’Hara will have about a month and half with us before training camp starts.”

Because they added O’Hara, Beathard said the Chargers will not select a quarterback in the April 26-27 NFL draft.

Beathard continued to work on Plan B negotiations in preparation for tonight’s signing deadline. The club announced Tuesday that it has come to terms with Buccaneer linebacker Eugene Marve, Lion cornerback Sean Vanhorse and 49er defensive end Greg Joelson. The Chargers are expected to add Dolphin defensive lineman Terry Price today.

Talks also continued with Packer wide receiver Erik Affholter. Affholter surprised the Chargers in a recent workout, running the 40-yard dash in 4.4 seconds.

The Chargers earlier signed Steeler safety Delton Hall, Lion H-back Cedric Jackson and Dolphin tackle James Parrish as Plan B free agents. They also have added free agents Derrick Faison (wide receiver), Rich Andrews (kicker) and Jeff Walker (offensive lineman). Walker was the team’s third-round pick in 1986, and later was traded to the Rams for an 11th-round choice.

“Other than Marve and Hall, we won’t know what we’re getting until somewhere down the road,” Beathard said. “I’m still worried about the defense. Offensively, if we stay healthy, I think we’ll be all right.

“We’ve helped the defense with Hall and Marve, but now we have to get more help in the draft and get players signed.”

The Chargers won’t know officially until tonight who they are losing in Plan B, but they’ve already been advised that many of their unprotected players are moving.

Starting cornerback Sam Seale will rejoin the Raiders along with wide receiver David Jones and safety Martin Bayless will go to the Chiefs. Defensive lineman George Hinkle received a $200,000 signing bonus from the Redskins, center Frank Cornish will play for the Cowboys, and offensive lineman Eric Floyd accepted an offer from the Eagles.

Deep snappers Mark Rodenhauser (Bears) and Randy Kirk (Bengals) signed earlier, along with defensive lineman Skip McClendon (Vikings), offensive lineman Mark May (Cardinals) and wide receiver Kitrick Taylor (Packers).

Jones’ departure surprised the Chargers because the seventh-round pick was pronounced hurt prior to training camp last year. The Chargers kept Jones on their roster listed as physically unable to perform, but allowed him to practice all last season.

The loss of Seale leaves a void at left corner. Beathard said the Chargers covet Wisconsin’s Troy Vincent, Florida State’s Terrell Buckley and Texas A&M;’s Kevin Smith in the draft, but he said expects all three corners to have been taken by the Chargers’ selection at No. 23 in Round 1.

Beathard said he talked to teams about trading and moving into the top 15, but such a move would come on draft day. Beathard said he would consider trading next year’s No. 1 pick for the opportunity to move forward in this year’s draft.

He said he will not trade one of the team’s running backs to advance in the draft, and will also not consider offers for defensive linemen Burt Grossman and Leslie O’Neal.

As for his most recent Plan B acquisitions, Beathard offered his assessment:

- Vanhorse: “He ran a 4.4,” Beathard said. “We thought he was a decent prospect a few years ago, and now he has the benefit of some NFL experience.” Vanhorse, 5-10, 180, spent the 1991 season on injured reserve with an ankle injury.

- Price: “He’s an interesting guy,” Beathard said. “His problem with the Dolphins was that they play a 3-4 and he feels more suited to a 4-3 defense.” Price, 6-4, 272, was a Plan B free agent with the Bears after being selected in the 10th round in 1990.

- Marve: He started the first four games for the Buccaneers last season, and then the final game. Marve, 6-2, 240, had made 52 consecutive starts before defensive changes reduced him to situational play.

- Joelson: “He’s a bit of a reach because he hasn’t played much,” Beathard said. “But he’s a very good special teams player.” Joelson, 6-3, 270, will earn a look as pass rushing specialist to replace Hinkle.