Browns coach Kevin Stefanski on Cowboys ex Amari Cooper: “I’m trying to find new ways to tell you guys how impressed I am … He’s really, really smart, he’s a great teammate, runs every route imaginable … he’s so versatile, he’s such a big, physical receiver, he’s trustworthy. I really enjoy No. 2.” FRISCO – “I’m glad they did it.” Five simple words that explain what the Cleveland Browns and Jacoby Brissett think of the salary-dump trade this offseason of Amari Cooper from the Dallas Cowboys to Cleveland. That doesn’t change the only simple word Cowboys owner Jerry Jones used…