Santisiri said that the agency would promote from within as much as possible rather than appoint a high-profile creative to replace him. "It's not easy to walk out of an agency you've been with for so long. You need to prepare the younger generation to take over, but I think they're ready now," he said.
Santisiri founded local Thai agency Next & Triplet in the Eighties, and oversaw its merger with the Omnicom network.