He is in London for commercial negotiations and the latest World Rugby meeting where former England captain Bill Beaumont was elected chairman to succeed Bernard Lapasset. Former Pumas captain Agustin Pichot was elected his deputy.
Listen: The Crowd Goes Wild Breakfast interview Steve Tew
Tew said the future of Sanzar was always near the top of the agenda at these meetings.
It was a tournament which had to compete against other competitions like French club rugby which had just signed a new television deal and the England club scene where the salary cap was being raised as sponsorship and investment continued to multiply.
"We can sit in New Zealand and play ourselves but that won't last long until we are all finished," Tew said.
The conference structure was not perfect but it laid a foundation for the future which Sanzar officials thought would work.
Discussion about the international calendar from 2020 continued to was deal with a range of needs and a myriad of issues.
Forever expanding competition:
1996-2005 - 12 teams
2006-2010 - 14 teams
2011-2015 - 15 teams
2016 - 18 teams