In an interview with Sky, former world champion Jenson Button thinks Vettel’s departure from Ferrari is “crazy”. "He showed his speed last year. He had a difficult time when Charles (Leclerc) behaved very well and it hurt him a little mentally. But he came back strong, someone you would definitely choose to put in your car. There must be more. I don’t know if Ferrari doesn’t want two number one drivers but it’s a really strange choice for me and I’m still shocked that Sebastiant (Vettel) is not in a red car, "he said.