Jim Schwartz and the Detroit Lions have reached an agreement for the Titans' defensive coordinator to become their next head coach, according to several sources. Schwartz has agreed in principle to a four-year contract. On Tuesday, after a second interview with the Lions, Schwartz said the chance to coach the NFL's first 0-16 team motivated him to tackle it and succeed in it. "I don't shy away from a challenge," Schwartz said earlier this week.