FILE -- In this Aug. 8, 2016, file photo, Tennessee Titans defensive coordinator Dick LeBeau, right, and linebackers coach Lou Spanos signal in a play during an NFL football training camp scrimmage in Nashville, Tenn. Rotating defensive linemen or even outside linebackers to keep players fresh to rush the quarterback is nothing new in the NFL. LeBeau has extended the practice by alternating four players at the two safety positions. (AP Photo/Mark Zaleski, File)
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