Coaches have records. Teachers have students.

Those who have learned under Tom Moore seem forever indebted.

“I’ve been around a long time myself, but nobody can teach it like he can,” Cardinals head coach Bruce Arians said.

Let’s get this out of the way: Moore didn’t exactly bedazzle at his introductory news conference on Friday. Most of the time, he sounded like a 74-year old man, his voice shaky and thin. But that’s exactly the point.

The Cardinals hired Moore for his experience. They hired him to help fix a broken offense. He is not expected to run marathons or deliver booming speeches. And his presence alone serves a valuable purpose.

With three Super Bowl rings and countless testimonials, Moore gives the new coach and the new offense instant credibility. He provides blind faith and immediate buy-in for those inside the locker room.

“What he’s going to bring to our offensive staff is amazing,” Arians said.

Hyperbole?

Arians is one of Moore’s indebted pupils. He gets emotional when speaking of Moore’s impact on him, and the NFL. For Arians, this is a significant hire.

Moore is a security blanket for Arians, who comes to the Cardinals with great distinction but not much experience. To wit: Arians is the reigning NFL Coach of the Year, yet prior to coming to Arizona, he’s only held the big job on an interim basis in Indianapolis, filling in when Chuck Pagano was diagnosed with leukemia.

There are new pressures. He’s not leaving the light on for anybody else, and the safety net of the interim tag is gone. People are expecting a lot from Ken Whisenhunt’s successor. Moore will help steady Arians, if and when necessary.

“Bruce is a winner,” Moore said. “And I want to be with a winner.”