I called this in week 3, sadly. The Lions had a very easy first half of the schedule and that allowed hype to build, but frankly, like the Bills and the Bengals, while promising young teams, they just aren't at the next level yet (as they are proving in their more difficult second half of the schedule).
Sadly, I do not think any of these teams will succeed in the future unless they get new leadership (which is unlikely considering the success all three teams have enjoyed due to their weak schedules).
The Bengals need to get rid of Marvin Lewis. He cannot win. He's proven it. But sadly he's only part of the problem. Owner Mike Brown is just as big of a part (if not worse).
Chan Gailey, I like but I think he is more of a setup guy. He will put them in a position to succeed in the future but never take the Bills to the next level.
As for the Lions....the lack of discipline that is killing that team. They are giving games away and all of the young talent and potential in the world means **** if you are giving away games. Furthermore, I believe their lack of discipline begins with their head coach. If they had Jeff Fisher or Bill Cowher on the sidelines, they would be 10-2 having beaten the Falcons, 49ers and won the second Bears game. Jim Schwartz sets the culture. Jim Schwartz through his behavior has made the behavior of his players acceptable in that locker room. I know it is unlikely, but if they could get an elite coach like Jeff Fisher or Bill Cowher, then I think they should give Schwartz his walking papers. Otherwise, I predict a sharp drop for the 2012 Lions as they face a tougher schedule.