Name the ten least "successful" NFL teams since 2002 (the last time a new team joined the league), based on the following formula:
* Plus/minus 0.25 points for each regular season win above/below 8 (half points for ties) * 0.5 points for making the playoffs as a wild card; 1 point for making it as a division champion * 1 point for each playoff win * 0.5 points for a Super Bowl appearance * 1 point for a Super Bowl victory
Example: The Atlanta Falcons' score for the 2016 season is 4.25: 0.75 points for having an 11-5 record in the regular season, 1 point for making the playoffs as the NFC South champion, 2 points for their playoff victories in the divisional round and NFC championship game, and 0.5 points for appearing in (but not winning) Super Bowl LI
An average season for the Cleveland Browns during this span is about -0.75 points, which equates to a 5-11 record. Yes, when the Browns go 6-10, they're doing better than usual.
Barring a miraculous turnaround (and some other lucky breaks), the Cincinnati Bengals will be jumping onto this list after the 2019 season. Leaving to make room for them will be the Texans, or possibly the Rams if the Texans miss the playoffs and the Rams get in and make a deep run.
Now updated for the 2019 season. As predicted, the 2-14 Bengals had no trouble sliding into the former spot of the Divisional Round-bound Texans. Congrats also to the Bills and Rams, the only other teams from the list who had positive seasons.