Plymouth Argyle are facing mounting calls to sack Wayne Rooney after their latest mauling at the hands of Coventry City . The Pilgrims are rooted to the bottom of the Championship and they enjoyed no festive cheer with Lampard's outfit enjoying a free-scoring afternoon at home. Coventry eventually secured a 4-0 win as pressure further ramped up on Rooney, who only took charge in the summer. Plymouth have not won since the opening week of November but Rooney has been defiant and maintained he