Haley was the coordinator of the high-scoring Cardinals team that made it to the Super Bowl, combining with quarterback Kurt Warner to create one of the NFL's most entertaining offenses. Haley's emotional nature was apparent to everyone, even with occasional sidelines shouting matches with Warner, who shrugged them off as no big deal and just part of the way the team operated.
Haley's success in Arizona led to his hiring as head coach of the Chiefs in 2009. In his second season with Kansas City, the Chiefs went 10-6 and won the AFC West. But he was fired after the team went 5-8 in 2011.
In February of last year, Haley returned to his hometown of Pittsburgh as coach Mike Tomlin's offensive coordinator. He had a sometimes bumpy relationship with quarterback Ben Roethlisberger, who apologized after criticizing Haley in the aftermath of a late-season overtime loss to Dallas.
McCoy has been the Broncos' offensive coordinator since 2009. In 2011, he tweaked the offense to adapt to quarterback Tim Tebow, then went back to his usual approach when the team signed Peyton Manning. The result has been an offense that propelled Denver to a 13-3 record and a first-round playoff bye.
Horton, whose coaching background is entirely on defense, told reporters after his two-day interview was completed with Arizona on Wednesday that he was not concerned about being pigeonholed as a defensive coach only.
"I think I'm a coach of men," he said. "I talk about a plan to build a team. I don't talk about 'Hey, I can build this offense or this defense and good luck with the rest of the team.' Whether you're an offensive coach, you've got to have a defensive guy who can do something on that side. It all blends together. I think that's a zero issue."
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