In short , Dallas ' backups were better than Miami 's , since neither team played their starters beyond the first couple of series .
Miami closed out a winless exhibition season with a 30 - 13 loss to the Cowboys Wednesday .
Cowboys ' backups were better than Miami 's , since neither team played Cowboys ' starters beyond the first couple of series .
Miami closed out a winless exhibition season with a 30 - 13 loss to the Cowboys Wednesday .