Bruce Arians is looking for the Arizona Cardinals to have a quarterback with grit.

Kevin Kolb, John Skelton and Ryan Lindley had the quarterback job with the Cardinals at various time last season.

"When you go out and evaluate quarterbacks," Arians said, via The Arizona Republic, "you can look at arm strength, you can look at accuracy, you can look at height, weight, speed -- all the things that are coming up with these young quarterbacks -- but you truly can't measure two muscles, the brain and the heart, and that's what separates them.

"That's the grit. When they step in the huddle, the other 10 guys, whatever comes out of his mouth, they believe it's going to work. That doesn't mean he's the most talented player in the world, but he has that leadership, grit, that he's going to do whatever it takes for his football team. It means he's tough as nails and guys will follow him into a fire. That's what you're looking for. That's grit."