It’s a muggy Friday morning in late July, with thunder forecast for the afternoon, but the fans lining up outside the back entrance to the Cleveland Browns’ training facility in Berea, Ohio, will not be deterred. It’s an eclectic procession waiting to enter — some large and serious men wearing jowly rubber dog masks, families in matching orange football helmets, elderly couples with tributes to Paul Brown etched on their forearms like initials carved in wood — yet in their sense of affiliation and purpose, they’re perfectly, intimidatingly aligned.