Kelly's up-tempo offense is going to send ripple effects throughout the NFL.
"From a communications standpoint, it's going to change the league. I'm not going to tell you guys how, but it will," tight end Brent Celek said, via Philadelphia Magazine. "It's something that I never even thought was possible in the NFL. Seeing the stuff he's doing, he has a reason why he does everything that he does, and a reason why each play is called what it is. And it all makes sense."
2013 NFL Draft: Team needs
Our analysts examine each team's game plan entering the NFL draft, identifying biggest needs, potential fits and more. More ...
"Yeah, but it's deeper than that," Celek added. "It's pretty cool. It's all thought out to the Nth degree."