Finally, in the 2007 season, his charisma and salesmanship could no longer save him, overwhelmed by a season in which he had to be a difference-maker and wasn't.
The Ravens fired Billick yesterday, ending a nine-year run that included four playoff appearances and a Super Bowl title in the 2000 season.
Billick should be saluted because he was a good coach, and during his era he produced enough smoke and mirrors to often hide his weaknesses on the sideline.
He fooled the local media (no big task), the Modell family, which hired him, and twice did the same with current owner Steve Bisciotti and general manager Ozzie Newsome, the last time nearly a year ago when they gave him a four-year contract extension.
But the Ravens had an extraordinary number of injuries this season, and when that happens, two things are revealed: It shows your team's depth and whether your coach really has a strong knowledge of the game.
The Ravens finished 5-11 but had enough talent to finish about .500 and at least be in contention for a playoff berth.
But questionable play-calling and clock management and an unproductive offense led to Billick's dismissal. He could no longer hide his deficiencies as a coach, and at times they were glaring, which irritated the defensive players.
Those same problems were there in his early years with the Ravens, but a great defense and a Super Bowl trophy obscured those weaknesses.
Who cared if the Ravens didn't score a touchdown in five straight games? Who cared if the Ravens went through numerous quarterbacks? Who cared if the Ravens went through three offensive coordinators and still didn't have a top 20 offense?
In the words of Billick: "It is what it is. A win is a win."
Billick's downfall began in 2003, the year he made then-No. 1 draft pick Kyle Boller his starting quarterback.
Basically, Billick mortgaged years off the careers of such great defensive players as Ray Lewis, Peter Boulware, Adalius Thomas, Tony Weaver, Ed Reed and Chris McAlister to tutor Boller.
That's when he started losing this team. The slide continued in 2004 and hit rock bottom in 2005.
The fluff and puff were gone. Players laughed behind his back at his $50 words. There was little interaction between Billick and his players, and the locker room became a problem area.
Billick overcame some of the problems, but he could never quell that rift between his struggling offensive players and their defensive counterparts.
It was too much. At the turn of the century, the Ravens had one of the greatest defenses in NFL history, yet from the 2001 season to the present they won only one playoff game.
That in itself kept eating at the fiber of this team, and it eventually turned the players against Billick.