The Cincinnati Bengals are part of a different list -- considered one of the league's biggest underachievers.
The Bengals (2-4) have dropped four of their past five games and attempt to break out of their doldrums when they host the lowly Browns (0-6) on Sunday (1 p.m. ET, CBS).
Cincinnati expects to be part of the postseason for the sixth consecutive season but the slow start threatens to halt that streak.
The Bengals edged the New York Jets in their opener before things disintegrated. Three of Cincinnati's losses have been by 12 or more points, including last Sunday's 35-17 setback against the New England Patriots.