Yahoo Sports reports: The challenge for Kyler Murray as a newcomer to the Minnesota Vikings learning a complex offense has an extra dimension. Committed to staging a legitimate competition for their starting quarterback position, at least during this less-urgent part of the offseason, the Vikings have divided the time in drills with the first team between Murray and incumbent J.J. McCarthy. “You’ve got to put it together in a way that challenges those guys and see who responds, see who handles adversity well, and ultimately see who elevates the offense,” coach Kevin O'Connell said after the last practice of minicamp on Thursday.