Bill Belichick was the head coach of the Cleveland Browns from 1991 through 1995. After being fired, he spent the next few years as an assistant coach with the New York Jets, then ultimately left to become the head coach of the New England Patriots in 2000.

A year before Belichick shipped up to Boston, the Browns re-entered the league after a three-year hiatus. Since then, they have had two owners, seven general managers, and nine head coaches. The Patriots, meanwhile, have been led by Belichick for this entire century. During that time, the Patriots have the NFL’s best record (by 19 games) and point differential (by 862 points), while the Browns have the worst record (by two games) and point differential (by 177 points).

So, what’s it like being traded from the Browns to the Patriots during the preseason? “It’s a huge culture shock,” former Brown Barkevious Mingo said, per the Boston Herald. “I felt like the winning spirit was making its way into Cleveland with those new coaches, but it’s definitely been established here for a long time, and I’m excited to be a part of it.”

Luckily for Mingo, he’s got some help making the transition. Jabaal Sheard, himself a former Brown, made the leap to New England last offseason. “Jabaal was there my first year, and he carried me along in that long, long year,” he said. “But to have him again is a huge relief.”

If the Patriots can get similar results from Mingo as they did from Sheard, they’d have to be incredibly happy. Sheard was a useful player for the Browns, but saw his effectiveness wane as he transitioned from one system to another over the years. Playing a more fully defined role, he had what might have been his best season in 2015. Mingo has struggled thus far to turn his potential into production, but the Pats are certainly hoping a similar change in role will have the same results.

Source: CBS Sports / Barkevious Mingo: Leaving Browns for Patriots a ‘huge culture shock’