Roberts has already been replaced by Seshadri Sampath, whose previous roles included stints at Prism, the interactive unit of Singapore Press Holding's marketing division, J.Walter Thompson and MindShare.
Wee, who began his advertising career with McCann-Erickson Singapore in 1983, said that his top priority was to do his part to make BBDO Asia's top creative network.
"The challenge will be to sort out the basic structure in Singapore and make sure we have the right people, attitude and passion to become a creative hothouse,
he said.
Wee added: "Once we get the creative quality as high as we can, the clients and the work will follow."
Saatchis Hong Kong has yet to name a replacement for Wee.
Meanwhile, BBDO Hong Kong has announced the promotion of Danny Ma and Keenan Ton as joint heads of creatives. They replaced Paul Chan and K.C. Tsang who quit late last year to start up their own shop, Chan Tsang Wong & Mee, with anchor client Sunday Telecommunications, which was previously serviced by BBDO.
Ton said that the biggest challenge facing him, Ma and newly-appointed general manager, Joanna Hor Barnes, was to dispel rumours that BBDO Hong Kong had been dealt a serious blow, following the loss of the multi-million dollar Sunday assignment.
"We're in a down economy like everyone else, but we are producing campaigns and pitching for new business.
"At the same time, because of the management changes, we are setting up new systems and processes, with the aim of ensuring top quality work for our clients."
Both Ma and Ton, who joined the agency in 1996 and 1991 respectively, previously held the post of creative directors, and have numerous awards to their credit.