Source: Sander Philipse, BucsNation.com 
The Tampa Bay Buccaneers are the best 0-5 team of the past 25 years, according to Football Outsiders’ metrics. That doesn’t mean they’re actually a good team this year, as they’re ranked 22nd in this season’s rankings, but it does mean they’re not, you know, the worst team in the NFL. Because that would be Jacksonville.
Football Outsiders looked at the twelve best 0-5 team in their database, which includes the 1991 Tampa Bay Buccaneers who ended the season with a 3-13 record. The Bucs may not be able to top that: they have one of the toughest remaining schedule in the NFL.