The point of Hawaii’s spring training is there is no point of no return.

When David Griffin lost the No. 1 left tackle’s job, it was viewed as a reassignment and not a demotion.

"It’s our job to teach," UH coach Norm Chow said.

Griffin, who transferred from Mesa Junior College in January, has the build (6-foot-7, 320 pounds), footwork and anchor to play offensive tackle.

"He needed to learn more about the position," Chow said. "Our stuff is not all that easy for a lineman. There are a lot of adjustments. It’s not made easier with the complex defenses you see nowadays."

On the second-team offense, Griffin was able to work on his technique. For this past Thursday’s spring game, line coach Chris Naeole moved Sean Shigematsu to left tackle and started Griffin at right tackle.

Griffin played well enough that he is a contender for a starting job this fall.

"David turned it around," Chow said. "He’s a real rugged guy, a very aggressive guy. He had to learn our stuff. He’s going to help us."

Griffin was one of the success stories of spring training, which concluded with the Black-White game.

The Warriors implemented new offensive schemes, from spread formations to the pistol, and different defensive concepts.

"Last year, we talked about what we expected effort-wise," Chow said of the 2012 spring training, his first as UH head coach. "This year, we taught a lot of schemes."

Chow said the coaching staff will evaluate the personnel before whittling the playbook.

"That’s what May and June are all about," Chow said. "We have to evaluate the personnel and see what players we have."

Chow indicated every position is subject to review. Quarterback Sean Schroeder, who started 11 games in 2012, is recovering from back surgery and is projected to be fully healthy in July. Jeremy Higgins had a strong spring. But it is clear that Taylor Graham, who exited spring training as the No. 1 quarterback, is poised to become the offense’s leader. Graham, who redshirted in 2012 after transferring from Ohio State, is a leading contender to represent the Warriors at the Mountain West Conference’s media preview in July.

"Taylor did a lot of good things," Chow said.

In particular, Graham threw two scoring passes to rally the Black team to a 27-21 victory in the spring game.

Chow said the offense should improve this season.

"It’s encouraging because of Taylor," Chow said.

Chow said there are several options on offense. This spring, the basic offense was a three-receiver set with a tight end and running back.

Chow said one-back schemes worked because of running back Joey Iosefa.

"Joey gives you a chance," Chow said. "He got a lot stronger. He changed his body a little bit. You need to have a running back threat, and Joey is a running back threat."

Last year, the Warriors used the fullback exclusively as a blocker. Chow said fullback Marcus Langkilde could be used as a rusher. Iosefa could move to fullback in plays involving running backs Steven Lakalaka or Diocemy Saint Juste, an incoming freshman.

Wideouts Chris Gant and Trevor Davis and slotback Scott Harding performed well this spring. Five receivers join this summer, and if at least two contribute immediately, the Warriors might employ more four-receiver sets.

Several injuries on the defensive line opened the way for tackles Mike Andrade and Hunter Thomson to get more reps. Defensive ends Beau Yap, who is recovering from a fractured foot, and Iuta Tepa, a UCLA transfer who underwent back surgery, are expected to be ready for the start of training camp in August.

The Warriors are expected to rotate linebackers more. Benny Fonua and Jerrol Garcia-Williams are on the strong side, and Julian Gener, Kamalani Alo and Lance Williams are on the weak side. Art Laurel, who is recovering from surgery, is expected to move to the middle to rotate with Brenden Daley. TJ Taimatuia can play all three linebacker positions.

"It was a good spring," Chow said. "We played hard every day. The passion was there."