James-Michael Johnson and Brandon Marshall go together like silver and blue, like wolf and pack like, well, a left hook and a right uppercut."They are always side by side, on the field, on the sideline, off the field," said Nevada Wolf Pack defensive coordinator Andy Buh of his two senior linebackers. "You rarely see one without the other. If you see Brandon, you'll probably see James close by."The unbreakable bond between the two seniors has become a running joke around the Wolf Pack football program."They are like an old married couple," smiled assistant coach Ken Wilson. "You can always tell …