The German Bundesliga opens its season today. This is the literal height of sporting news on Germany’s annual domestic sporting calendar, of course, but it’s also a matter of European if not fully trans-continental news. Germany is currently No. 2 in UEFA’s coefficient ranking, which ranks clubs’ performance in Europa League and Champions League competitions. It is not a full reckoning of a league’s vitality, but it provides clues and hints as to which leagues are outperforming their contemporaries. The…