One group of critics Chehadé agrees with are those who want ICANN to strengthen its accountability. However, he isn't willing to postpone the transition process until better accountability measures are in place.
"We have a window, an important window, to remove the training wheels and we should do it," Chehadé said.
Work to improve ICANN's accountability is running alongside the work done to prepare for the transition. A group being set up to make accountability recommendations is attracting top experts as possible members, according to Chehadé.
An independent audit mechanism and procedures for receiving and hearing complaints need to be priorities, he said.
"Our accountability has been a work in progress for the last 15 years and will, in my opinion, continue for the next 15 years. Accountability isn't a state of nirvana, but an ongoing commitment that you keep improving" he said.
The ICANN 50 meeting starts Sunday and runs through Thursday.
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