He will begin his new role immediately .
O'Brien now joins the Minnesota staff in a coaching capacity , as he will fill the roles of co-special teams coordinator , assistant defensive backs coach and assistant to the head coach .
O'Brien will begin O'Brien 's new role immediately .
O'Brien now joins the Minnesota staff in a coaching capacity , as he will fill the roles of co-special teams coordinator , assistant defensive backs coach and assistant to the head coach .