So it was surprising - shocking to some - that the New England Patriots' coach would even crack a joke at a media session this week. Or curl his mouth into a smile upon hearing that Tom Petty and the Heartbreakers would be the halftime entertainment.
"I wish I could stand out there and listen to it," he said.
Belichick rocks? Who'd have guessed?
And how about that quip at the expense of the Mexican TV reporter who came to Media Day in a wedding dress and suggested to him that she was more attractive than model Gisele Bundchen, Tom Brady's girlfriend.
"I wouldn't go that far," Belichick said.
Even the Boston Globe asked, "Who kidnapped Bill Belichick? Who invaded his body?"
Of course, he still won't acknowledge that the New England Patriots are on the verge of becoming the first NFL team to go 19-0. The "U" word, for "unbeaten," has not crossed his lips at any point during the first 18 victories, so why should he say it now?
The 55-year-old Belichick is on his way to becoming one of the most successful coaches in NFL history
- perhaps THE most successful.
If the Patriots beat the New York Giants - and they are favored by nearly two touchdowns
- they will have won their fourth Super Bowl in seven seasons, the most successful run in nearly 30 years in a league that legislates parity among its teams.
The only real comparisons are Vince Lombardi, who won five titles in seven seasons in Green Bay; Chuck Noll, who won four in six seasons with Pittsburgh in the 1970s; and Bill Walsh, who built a San Francisco team that won four Super Bowls between 1981-89.
But none of them operated with free agency and a salary cap that makes it nearly impossible for a successful team to keep all its stars.
Of the 53 current Patriots, only eight were on the roster six years ago when New England upset St. Louis 20-17 for their first title. Lombardi and Noll were able to keep rosters laden with Hall of Fame players intact throughout their runs, and Walsh's 49ers had the kind of depth that allowed them to back up one Hall of Fame quarterback, Joe Montana, with another, Steve Young.
Belichick, the son of a career assistant coach at the U.S. Naval Academy, may be closest to Walsh, who was known as "The Genius" for his offensive innovations that are still very much in style. Belichick's innovations are defensive
- especially those he used to slow down high-powered Buffalo and St. Louis offenses in the 1991 and 2002 Super Bowls, the first as defensive coordinator for the Giants, the second as head coach of the Patriots.
And like Walsh, Belichick lets people know he's smart.
He often projects an image that he's above explaining the complexities of his schemes and that he's simply smarter than his 31 adversaries. Many of them resent him for that as much as they resent him for the episode in the first game of the season when a Patriots employee was caught taping the defensive signals of the New York Jets, coached by former Belichick assistant and protege Eric Mangini. Belichick was fined $500,000 by the league.
"He's one of the smartest people I've ever known, maybe the smartest. That's why I hired him," said Patriots owner Robert Kraft. Despite numerous calls urging him to stay away from Belichick, Kraft hired him in 2000 even though his record as the coach of the Cleveland Browns from 1991-95 was 37-45.
Nobody ever doubted his football acumen.
He was analyzing Navy film at age 9 for his father and was an assistant coach for the Baltimore Colts at 23, his first year out of Wesleyan University, where he was a 165-pound center after a year at the exclusive Phillips Andover Academy.
He went from the Colts to the Detroit Lions and Denver Broncos, then settled in at age 27 with the Giants, becoming defensive coordinator at 32. He spent 12 years at the Meadowlands, helping Bill Parcells win Super Bowls there after the 1986 and 1990 seasons.
That resume made him a head coaching candidate. His personality - or perceived lack of it
- stood in his way.
In 1990, when Parcells hinted that he might be stepping down, Belichick went to the equally brilliant and headstrong general manager, the late George Young, to ask if he would be considered for the job.
"No," Young told him, citing a personality unsuited to deal with the New York media. Belichick got the Cleveland job that year, but resents Young to this day, declining to credit him for scouting and personnel techniques that are clearly similar.
Young's instincts seemed correct, and Belichick made the playoffs in Cleveland only once, in 1994. He was fired when that version of the Browns left for Baltimore after the 1995 season. Art Modell, then the team's owner, called him a brilliant coach, "but human relations is important, too."
Belichick acknowledges indirectly that he had some failings in that area.