Race engineer Simon Rennie moves from Kimi Raikkonen to Mark Webber for 2013.
Jan.17 (GMM) Mark Webber will have a new race engineer this season.
Media reports said the Australian's long-time regular engineer, Ciaron Pilbeam, is switching to Lotus.
Red Bull confirmed the news.
It is believed Pilbeam is to become Lotus' new chief race engineer.