Here's hoping that Flores is an anomaly on the Belicheat coaching tree. Someone is due to win. The odds are in favor. That being said, I really think that if Saban had given it time that he would have succeeded as head coach. Bill O'Brien isn't doing a bad job with the Texans.
Brian Miller wrote:
In total, eight members of the Bill Belichick coaching staff have moved on to become NFL head coaches.
* Romeo Crennel: Crennel was the HC for both the Browns and Chiefs and compiled a 28-55 combined record with his best season being in 2007 with the Browns. It was the only time in his career he was above .500 as a head coach.
* Al Groh: Groh was the coach of the New York Jets for one season taking them to 9-7. He resigned after the season to return to college. Groh was a linebackers coach with Belichick.
* Josh McDaniels: McDaniels was a hot coaching prospect and still is today but continues to turn down jobs to say in New England. He coached two seasons with the Broncos as their HC but was fired after the 2010 season. One of those reasons was because, like Belichick, he violated NFL rules and videotaped an opponent. After a short unsuccessful stint as the OC for the Rams, he returned to the Patriots.
* Eric Mangini: Mangini lasted longer than any other Belichick disciple. He coached three years with the Jets and two more with the Browns. His combined record of 33-47 took the backseat to his whistleblowing of the Belichick cheating scandal.
* Nick Saban: We all know about Saban.
* Jim Schwartz: Some label Schwartz as part of the Belichik tree but in reality, he only got his start in the NFL as a researcher for Belichick during a short period of time when Belichick was with the Browns. He spent five seasons as a head coach for the Lions.
* Bill O’Brien: The most successful of the Belichick tree. He has a 42-38 record in his five seasons with the Texans.
* Matt Patricia: Patricia finished his first season with the Lions this year. He did so with a losing record but it is way too early to pass judgement.
For all the success that Belichick has had, his coaching staff can not say the same when they leave New England. Several assistants have gone on to have marginal success at the college level (not including Saban).