https://www.gpblog.com/en/news/3235...ian-horner-over-adrian-newey-s-departure.html
Marko on Newey's departure
Team principal Christian Horner said in September that there is no correlation between the RB20 performance and Newey's departure, but Helmut Marko does not agree. The Austrian sees that things only got worse for the team since the Briton left, while Horner only tries to downplay the situation.
"We had started well and dominated, but since Newey left, our engineers have actually had a bit of a hard time getting the most out of the car," Marko began.