Kamehameha Center, Kaiwi Chung, sets up for an offensive series for the Warriors. Eugene Tanner | SL

Purchase image 1 of 3

Kapolei's Micah Kapoi was described by Brian Derby as a "Big, athletic kid at 6-4, 285 that I see being a guard or center at the next level. Has good feet and hands, but has to be more consistent using them together with aggression." Stacy Kaneshiro | SL

Purchase image 2 of 3

Punahou's Semisi Uluave sets up against Iolani defenders. Sean Nakamura | SL

View image 3 of 3

How many offensive linemen do you see get Player of the Week honors?

Unlike quarterbacks, running backs, receivers and all defensive positions, offensive linemen can't be judged by metrics. There's no blocking efficiency stats or how many de-cleater blocks a lineman makes in a game.

The untrained eye wouldn't know how to evaluate the O-Linemen. So I asked someone with expertise in the field in former University of Hawai'i offensive lineman Brian Derby. He's been conducting the Derby Camps, specifically for offensive linemen, since 1998. His clinics started small and has reached the point where there is a waiting list. Even professional players, such as Olin Kreutz (now retired) and Dominic Raiola, veteran NFL centers, participated in his clinic.

Ball carriers and receivers are so-called "skill position" players. To Derby, offensive line is a skill position, too. After all, the best athletes usually play defense. The O-Linemen are the ones who have to keep them off their ball carriers and passers. Today's offensive lineman needs good feet and hands.

Here are Derby's analyses of 10 linemen (in alphabetical order):

1. Adam Amosa, Campbell, Sr.: "By far the best technician of the entire offensive line crop this year. Not the biggest kid in weight at 6'2" 265, but he has awesome feet, uses his hands well, runs well and is a smart kid. Big potential kid." My note: Finished calculus by his sophomore year.

2. Amu Auwae, Kapolei, Jr.: "Young, big, athletic kid at 6' 4" 270. Moves very well and has long arms. Needs to use his punch more with aggression, but overall, very athletic. He will be a big time offensive lineman by the time he is done."

3. Kaiwi Chung, Kamehameha, Sr.: "Not the tallest kid at about 5'9" 246, but very strong and plays aggressively. Very technical offensive lineman who makes up for his lack of size with his relentless motor and never-quit attitude." My note: Bench pressed 225 pounds 24 times at PIAA Combine, the highest total among participants.

4. Stansen Fonoti, Wai'anae, Sr.: "Big Kid at 6-2, 314. Moves well for his size and plays very aggressive. A better run blocker than pass blocker, but with his athleticism and some weight loss, his pass pro blocking will get a lot better. Very coachable kid with smarts and aggression."

5. Herman Kanoa, Kahuku, Sr.: "Not the biggest kid at 5-11, 285, but plays very aggressively with an awesome punch and great feet. Kanoa definitely has the best punch of the group. Needs to be more consistent, though, on every play. Love his motor and aggressiveness." My note: Bench pressed 225 pounds 16 times at PIAA Combine (tied for ninth).

6. Micah Kapoi, Kapolei, Sr.: "Big, athletic kid at 6-4, 285 that I see being a guard or center at the next level. Has good feet and hands, but has to be more consistent using them together with aggression. Overall, very athletic."

7. James Roy, Damien, Sr.: "A very good athlete at 6-2 275. Very athletic O-lineman who plays with a lot of aggressiveness. Good hands and feet. I see James as an outstanding center at the next level."

8. Andru Tovi, Mililani, So.: "Andrew is 6'-2, 300. Has great feet. Very, very athletic. He is Mililani's best pulling guard. He is a beast on the traps. Pass pro (protection) could be better, but he is a very big, athletic kid with a lot of potential."

9. Fred Ulu-Perry, Saint Louis, 6-2, 310, Jr.: "Good, big athlete with good hands and feet. He also plays very aggressive. He is the anchor of the St. Louis OL. I see Fred as a guard at the next level." My note: Bench pressed 225 pounds 16 times at PIAA Combine (tied for ninth).

10. Semisi Uluave, Punahou, Jr.: "Very big and athletic kid at 6-5, 300. Moves well and has good feet, but needs to use his hands better and be more aggressive with his punch. When he does punch with aggressiveness, he looks awesome. Got to use those long arms to his advantage. Needs to be more consistent. Overall big-time player with big potential."