The NFL Network documentary "Do Your Job Part III" that debuts on Sept. 4 on NFL Network chronicles the Patriots' journey to their sixth Super Bowl title, but in doing so, it also focuses on the relationship between Bill Belichick and his top assistant, offensive coordinator Josh McDaniels.

That collaboration began in 2001, when McDaniels was an entry-level assistant for Belichick on the Patriots' first Super Bowl-winning team.

"He was basically teaching me how to work at his level," McDaniels recalls in the documentary, "[By saying] 'no, it’s not OK to be good. It’s not OK to be detailed most of the time. What I want is as close to perfect as you can make it.’ ”

“It’s hard for me to imagine anybody being a better leader and a better role model for a young coach,” McDaniels says “He gives you responsibility, and then he lets you do your job. Because we’re not being micromanaged, that gives you confidence, and then you start to build trust. That’s just how a good organization works, and he fosters that every day.”

In turn, the teacher says he's taken lessons from the student.

"I've learned a lot from him," Belichick says in the film. "He has a perspective that's valuable for me to understand."

The defensive-minded head coach said he rarely sees things differently than his offensive coordinator when it comes to game-planning.

Pats acquire offensive line help: 

“I give him a little bit of input, but 90 to 95 percent is his plan, his vision,” Belichick says. “Rarely do we see things that differently. But sometimes there will be things that I suggest. Sometimes he’ll say, ‘I think that would be great,’ and sometimes he’ll say, ‘I don’t really think this is the right time for us to do that. Here’s the reason why.’ And he’s usually right.”


The inside look at the relationship - as well as this week's retirement of Colts' quarterback Andrew Luck, may help explain McDaniels' last-minute decision last offseason to turn down the head coaching job in Indianapolis.

In fact, the film opens with the ring ceremony at Patriots owner Robert Kraft's house earlier this summer, where Belichick is seen saying, “Josh, I’m glad you didn’t go to Indianapolis. Let’s start with that.”

It's a Patriots night on NFL Network Sept. 4 with "Do Your Job Part III: Bill Belichick" at 8 p.m., followed by "America's Game: 2018 Patriots." 


Click here to download the new MyTeams App by NBC Sports! Receive comprehensive coverage of your teams and stream the Celtics easily on your device.