International advertising agency J Walter Thompson has relaunched and rebranded itself as JWT to meet the creative challenges."This change goes far beyond a name or a logo change. It is about how we have chosen to respond to the communication challenge that our business is facing," JWT CEO Colvyn Harris said in a release today.The agency would now shift its focus from account management to creative strategy, the release said.As part of the rebranding process, the agency's offices in India held a series of activities including a mid-sea farewell to the agency's long-time mascot Commodore J Walter Thompson.