The New England Patriots have been so successful with Bill Belichick at the helm that younger NFL fans could hardly imagine that there was a time when the Patriots were led from the sidelines by another man.

In fact, he's been in the league long enough that he's set to hit a winning landmark with the team he's won six Super Bowls with, per ESPN's Adam Schefter.

It's going to be full circle for Belichick as he approaches the coaching landmark. He started his head coaching career when the Cleveland Browns gave him the position in 1991. He stayed there for five years, winning 45 of his football games with the Browns before being released by the organization in 1995.

His next coaching gig took him to New England as he was named the head coach of the Patriots in 2000. It coincidentally was the first year Tom Brady entered the NFL as a sixth-round selection out of Michigan.

The coach and quarterback instantly made their impact felt on the team and became one of the biggest football dynasties in the league's history. The chemistry the coach and quarterback built has resulted in a lot of winning seasons and six Super Bowls in their fingers. Belichick consistently managed to grab outstanding players and find superb men through the draft. The current iteration of the Pats defense has been so good that they're called the Boogeymen who scare quarterbacks like poor Sam Darnold.

There's currently a firestorm surrounding Brady's future with the Patriots, but Belichick's focus should only be on keeping the winning streak alive and getting win No. 300 under his belt.