By Kevin Parrish Jr. Whenever Patrick Mahomes faces the New England Patriots, it’s challenging for one reason: head coach Bill Belichick. Belichick is known for confusing and frustrating opposing quarterbacks with his defensive knowledge. That’s why the Kansas City Chiefs quarterback respects the legend so much. After the Chiefs defeated the Patriots on Sunday at Gillette Stadium, Mahomes praised Belichick, who many regard as the greatest head coach ever. “That’s a great defense that’s coached by the best of all time,” Mahomes told Fox Sports. “The best defensive coach, especially. “Belichick …