Year one for Jahleel Addae saw the safety join the Chargers as an undrafted rookie, make the 53-man roster, contribute on special teams and the dime defense before, over the course of the year, assuming a larger defensive role.

It is only logical he wants to take the next step.

Addae looks to continue in year two the growth in playing time from his first NFL season. That means pushing and overtaking Marcus Gilchrist for the starting job opposite safety Eric Weddle, a possibility that will play itself out over the coming months. Addae believes he's made mental and physical strides this offseason. He can demonstrate so next week when the Chargers begin organized team activities.

OTAs, starting Tuesday, are 10 non-contact practices over three weeks. They mark the first time this offseason the Chargers' offense is permitted to compete against the defense in team drills under the collective bargaining agreement.

"I want to become a starter," Addae, 24, said. "That's one of my goals. … Help the team in any way possible. If I don't get the starting job, it's not because I'm not going to bust my behind. When I do get my shot to step on the field, I'm going to be ready."

It would take beating out Gilchrist.

The versatile fourth-year veteran is entering a contract season. He started every game last year, primarily at strong safety. Gilchrist moved to slot corner when the Chargers lost Johnny Patrick to an ankle injury. The change coincided with Addae's increased playing time; the rookie played safety in both the nickel and dime packages, on the field for about 80 percent of the team's defensive snaps in the final five games.

Darrell Stuckey, Brandon Taylor and undrafted rookie Alden Darby also form the depth chart.

Addae was highly complimentary of them all.

"I feel like the competition is going to be great for OTAs and camp," he said, "and it's going to bring out the best in us all."

The development from year one to year two is generally considered the largest jump an NFL player will make during his career.

Addae knew his assignments last year. This offseason, he's learned others. A higher mental grasp of coordinator John Pagano's defense allows him to know where his help is on a given play. Addae also has made physical strides in recent months.

The 5-foot-10 safety played at 195 pounds last year. He is up to 200 now.

"I feel quicker faster, stronger, more explosive," said Addae, who had 29 tackles, one sack and three passes defensed in 2013. "I just feel real confident about this coming year. …