As Scotland failed to win for the sixth game in a row, the absence of Celtic players in Steve Clarke’s starting lineup is stark. Anthony Ralston missed his chance to impress last night as did Greg Taylor. Both Celtic fullbacks were unused subs in Scotland’s 1-0 defeat to Michael O’Neill‘s Northern Ireland. It was a result that was unexpected as Scotland has had a great home record recently and it now leaves Steve Clarke with plenty to think about ahead of the next international break ahead of the Euros in Germany. What this international break has done though, however, is show just how much Sc…