‘The Bills, who rank 31st in the league against the run, face a stiff test Sunday against Miami rookie Ronnie Brown, the second overall pick in last April’s draft. Brown rushed for 132 yards and a TD in Miami’s 27-24 win over Carolina on Sept. 25. Two weeks ago, the Bills gave up 128 yards rushing and a TD to Tampa Bay rookie Carnell “Cadillac” Williams. “I see him as a young, tough, gifted running back,” Bills LB London Fletcher said of Brown. “He has some patience and you often don’t see that in a young guy. You can tell he’s been coached well and he has a good feel for finding the creases.”‘