Shopping on the NFL free agent market can be so very tempting. Talented and experienced linemen, pass rushers, wide receivers and cornerbacks available to fill a hole in the roster. That new starter can be yours with a big enough check. Just be sure to add enough zeros. Being available in free agency does not make a player a sure-fire hit. Just ask the Tennessee Titans. The Titans busted on not one, but two free agents last year. They wasted more than $21 million combined on Vic Beasley and Jadeveon Clowney and didn’t get a single sack combined.