Hastings, who is on sabbatical, is not expected to rejoin the agency and has been replaced by Nicky Kenyon, who joins from RMG Connect.
Also leaving is Tequila's creative director Steve Llewellyn (pictured), who moves to 141 Worldwide as its new ECD. Llewellyn relocated to Tequila Singapore from the agency's Hong Kong operation earlier this year (Media, 17 March), an office he helped establish in 2003.
Llewellyn's appointment follows Mark Chung's departure to Arc in July (Media, 13 July). At 141 he will oversee accounts such as Heineken, Nokia and 7-Eleven.