He gives the offense a dimension that only KC has with Tony Gonzalez. Jesse Palmer, Mike McMahon. Some RBs who may fall are Correll Buckhalter from Nebraska and a small college kid Dominic Rhodes from Midwestern State. Rhodes has some big time ability. Colston Weatherington is a defensive end from Central Missouri State and is the real sleeper.
Lets look at the last few years.
So far it has to be Ryan Leaf. He could turn his career around but he stands right now as a colossal bust. KiJana Carter, although he hurt his knee as a rookie and was never right after that, was one people expected a lot from. Curtis Enis is another. He is starting anew in Cleveland.