"It's the hardest position in football to evaluate," he said. "Very, very difficult to evaluate. When you look at them in college, you're not sure exactly what maybe their coach is telling them in that system. When you interview them, you're trying to teach them some things that maybe you'll do with them, see how they pick that up. You just have to do the best job you can of spending time with the person, with making sure that you know everything you can know about that person. And when you feel it in your gut, and your organization feels it, then you go ahead and make that pick. But it's a very, very important position on any team in the NFL."