Last week, the man who has led international tax reform for the past 15 years announced that he was leaving. Frenchman Pascal Saint-Amans, 53, will retire as Director of the Centre for Tax Policy and Administration of the OECD at the end of October. On the occasion of a public consultation meeting as part of the ongoing global talks to reform the taxation of multinationals in the digital economy in Paris this week, he shared his assessment of the process he is now handing over to OECD colleagues. “Over the past 15 years, we’ve really changed the tax world,” Saint-Amans…