The non-champions are the Bills, Browns, Bengals,
Jaguars, Texans, Titans, Chargers, Eagles, Vikings,
Lions, Panthers, Falcons, Cardinals.
Since the Buccaneers exited that list in Super Bowl
XXXVII, only the Saints in Super Bowl XLIV and the
Seahawks in Super Bowl XLVIII have joined the ranks
of the Lombardi owners..."
http://profootballtalk.nbcsports.com/2016/02/10/nearly-half-the-league-still-hasnt-won-a-super-bowl/
