Mark Webber has dismissed concerns that a change of race engineer could hurt his chances this season.
The Aussie bid farewell to his long-time race engineer Ciaron Pilbeam at the end of last season when he moved to Lotus.
In a straight swap, Webber will now work with Simon Rennie, who previously worked with Kimi Raikkonen at Lotus.
Webber, though, is confident that the change will not hurt his campaign.
"This is part of Formula One," he told ESPNF1.
"Unfortunately there are sometimes changes but it's moved in a way so that everyone is still positive to work with and we have a fresh start and a new environment.
"Ciaron is happy to have a change of scenery as well and you don't want him to be unhappy where he is. So overall we still have a strong team and one that can challenge for the Championship."
He added: "Ciaron was my engineer ever since I joined Red Bull, so all the results I've had have been with Ciaron and all the wins he's had in Formula One have been with me; we've had some really good times together.
"He chose to move to a different team and he'll be missed at Red Bull.
"But we have a great engineer in Simon Rennie who is coming from Lotus and has a very good pedigree. I've been working well with him in winter testing along with Gavin Ward, my performance engineer, and the three of us are starting off very quickly."