FILE - In this Tuesday, May 23, 2017, file photo, Denver Broncos offensive coordinator Mike McCoy looks on as players take part in an NFL football organized team activities session at the Broncos' headquarters in Englewood, Colo. McCoy, who is returning for his second stint as the Broncos' offensive guru, is tasked with tailoring an offense that clicks with either Trevor Siemian or Paxton Lynch, whichever one may be under center for the first snap of the season ahead. (AP Photo/David Zalubowski, File)