by Paul Cook - There’s still five rounds to go and plenty of time for the stagger to unwind but there will be more than a couple of clubs already looking nervously ahead at a potential early exit after the opening weekend of this year’s Heineken Cup threw up some interesting results. Of the more fancied teams to hold the famous trophy aloft for perhaps one last time at season’s end, Leicester, Northampton, Clermont Auvergne and Perpignan all came unstuck but the biggest shock came at Murrayfield where Edinburgh upset Munster, who currently sit ten places above them in the Pro 12 ladder and had already beaten the Edinburghians back in the first game of the season. However, despite coming into this clash on the back of only one win from five matches, there was a school of thought that s