When he was named as the 105th Archbishop of Canterbury in 2013, much was made of former oil executive Justin Welby’s business background in explaining his meteoric rise through the ranks of Anglican bishops. Here, his supporters said of the cleric who had sat on the banking standards committee of the House of Lords, was someone with the right type of real-world know-how to sort out the endlessly warring factions of the worldwide Anglican Communion of 80 million souls.