It was Concord that Sharpend mentioned earlier that overshot the red carpet, had to fit the tug and push it back. Guess BA Captains don't have a chinagraph in their nav bag to make marks on the DV window on departure to line up eye with position of said carpet.
They should have left the job to the guys who did it all the time. No disrespect, like anything else it takes training and practice.
The whole operation is only like a timed bombing run. The IP is landing then you have to get the dividers onto the taxiway charts and work out the time for taxying and of course know even which way you are parking on the stand to get to target. It took 30secs to turn a VC10 gently through 180°.