Given the comments on the depth or lack thereof on the Chargers, I thought I would give my take on the backups that may make the break through over the next few years.

Legedu Naanee - He went to Boise State to try and become a QB.  He lost the battle as the starter there and was converted to TE.  He is reputed to be amazingly versatile, and he has very soft hands.  This year may see him used as TE, FB or WR but this off season he has mostly worked as a receiver and will battle Buster Davis for the number three position.  He 'played' the part of Titans QB Vince Young in preparation for the playoffs.  The coaches were amazed at his ability, both in running and passing.  You may see some trick plays where he throws the ball.  Also just in terms of pure athletic talent people have placed him up with Cromartie and Merriman.  It may be two years before you see him bust out. 

Anthony Waters - He was a projected number one but tore his ACL in his senior year; not unlike A. Cromartie.  The Chargers picked him up in the third round as a linebacker.  Last year he was laid up, but this year should see him start to play on defense.  He is unlikely to make the breakthrough this year, but the Chargers are likely going to lose either Shaun Phillips or Shawn Merriman in the near future, Waters will be seasoned and ready to go by then.  He may challenge for Cooper's LB position for the first four games if he has an amazing pre-season.

Brandon Siler - I'm still not sure why he slipped as low as he did (7th Round).  Yet another linebacker who looked great on special teams (21 tackles).  That earned him several publications 'All Rookie' honors.  He was with the Gators from Florida and was reputed to be a leader on the defense.  He left college early, maybe that was why he slipped into the seventh round, it will be interesting to see how much play time he will get.  Even with the great LBs, it's good to see some young turks backing them up.

Paul Oliver- Drafted as a corner, he may be a bit slow and get shifted to backup Safety or play in some nickel and dime formations.  Formerly expected to be a first round pick, he became disqualified academically; the Chargers picked him up for a fourth round pick in the supplementary draft.  Even though disqualified academically he scored well on the Wonderlic; but you have to wonder about his motivation.  The coaches do report a good work ethic.  He spent last year learning the defense  and reports say he looks very good. He would play the top corner on the 'scout' team for the Bolts.

Buster Davis -  As the Chargers number one pick last year, Broncos fans might most likely have heard of him.  He played next to D. Bowe and had injury issues last year.  Many criticized AJ for reaching, but near the end of the year you could see flashes of his potential.  Very quick and with good hands, he looks to be ready to fight it out with Naanee to be the Chargers number three receiver.  The Chargers are so deep at WR this year, they are actually going to either trade or release Eric Parker who had been our number one  over the prior five years (out with an injury last year).  He is likely to return punts along with D. Sproles.  Many of us would like to see Cromartie who has blazing speed, but it looks unlikely unless one of them goes down.