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The next coach on this list, Marvin Lewis, should come as no surprise.
Following the Bengals 10-6 season, in which they won the AFC North, many expected the Bengals to compete for a Super Bowl last year. The tables turned though, as the Bengals turned back into the "Bungles," finished 4-12, in a season that was a complete disaster. Things once seemed so promising in Cincinnati, and now, they are back to normal.
Marvin Lewis is on thin ice in Cincinnati, and quite frankly, I don't see how he makes it past this season. With the Bengals' franchise quarterback, Carson Palmer, refusing to play in Cincinnati, it's likely that the Bengals will turn to Andy Dalton, rookie out of TCU. You know things are bad in Cincinnati when your quarterback threatens to retire if he has to remain a Bengal.
Since becoming head coach of the Bengals in 2003, Marvin Lewis has made the playoffs just twice and resulting in zero playoff wins. How he's still coaching this team is beyond me. He's a good guy, but it really does not seem like he is the right guy for this job.
Final Verdict: With the Bengals likely to struggle this season, Marvin Lewis may not make it through the whole year.