After watching the chelsea - wigan game the offside goals the linesman mistakes these bad mistakes happen all to often. Andy Townsend once said why not use the fourth official instead of standing there and holding up the subs. number board he could be wacthing the game on the t.v monitor and when the ref. or linesman screw up contact them and sort it out in seconds. It would be interesting to find what the F.A. overpaid high ups thing of that