The juxtaposition between brilliance and bone-headedness was even starker in the case of Jim Hamilton. No sooner had the lock dived over in the closing drama for his try than he was trying to start a fight with the Welsh forwards. Indeed, one argument being made in the stadium last night – quietly, mind, given that it exonerated Jackson, the poor referee – was that if Hamilton had not been so intent on a punch-up, Scotland would have had time to chase the win. As Cotter attempts to guide the Scots back to a semblance of their 1984 Grand Slam-winning pomp, these are the rushes of blood that he will have to cut out.