ST. JOSEPH, Mo. (AP) — The Kansas City Chiefs have been required to make changes to their coaching staff over the years, the natural byproduct of success, as top assistants such as Doug Pederson and Matt Nagy got hired away for better jobs elsewhere.
This past offseason, though, Andy Reid made some changes that seemed unnecessary at first glance.

It began when running backs coach Deland McCullough left for a job as the associate head coach at Indiana, opening up a job once held by current Chiefs offensive coordinator Eric Bieniemy. Rather than simply hire someone to replace McCullough, Reid decided to move wide receivers coach Greg Lewis into the role — even though his work with Tyreek Hill and the rest of the Chiefs’ pass-catching crew has been a big reason for their offensive success.