Aug 22, 2015; Houston, TX, USA; Houston Texans defensive coordinator Romeo Crennel walks onto the field before a game against the Denver Broncos at NRG Stadium. Mandatory Credit: Troy Taormina-USA TODAY Sports
3. 2005-2008 Romeo Crennel
Look, we all like Romeo as a guy. He seems genuinely likeable and seemed to really be good at being an excellent defensive coordinator. He was successful in New England, winning three Super Bowls running Bill Belichick’s defenses.
As such, the Browns were one of the first NFL teams to get bit by the Belichick coaching tree, seeing Crennel post a 24-40 record in Cleveland. Again, Crennel had never been a head coach before and it showed, save for the magical 2007 season, where Derek Anderson and Braylon Edwards helped the Browns resemble an NFL offense for the last time in recent memory.
Even with that 10-6 season, Crennel was canned before he could get through the first year of a contract extension. Crennel most recently has helped the resurgent Texans defense pull within playoff contention and has helped J.J. Watt become J.J. Watt.
Next: 4. Eric Mangini & 5. Pat Shurmer