Kansas City Chiefs coach Andy Reid plans to hand over playcalling responsibilities to offensive coordinator Matt Nagy for Sunday's game against the New York Jets, according to team sources. Reid did not respond to inquiries regarding the development, as the Chiefs enter Sunday having lost five of six games after a 5-0 start. A team spokesman claimed to have no knowledge of the change. It would not be the first time in Reid's coaching career that has he has occasionally turned over playcalling to a coordinator. He did so with Marty Mornhinweg and Brad Childress in Philadelphia and with Doug Pederson in Kansas City, though the sources said Reid will continue to have strong oversight during the game. Pederson scripted the first 15 plays a couple of times but?did not have a genuine start-to-finish playcalling experience. Nagy will be doing more Sunday, sources told ESPN. Reid also has given strong vocal support to quarterback Alex Smith, but the same team sources say...