Martinez has to make the point to Kenwright (hope he will). He is the manager. We can't lose our 2 star players at this stage of the transfer window.
This comment from the Gaurdian answers that question for you.
Despite his stance that Everton do not want to sell Baines or Fellaini, Martínez said the club must be "prepared for anything" before Monday's transfer deadline and made the significant admission that negotiations will be left to Kenwright and United. "I am not aware of it," he said of an improved United bid. "I have told the chairman I don't want to know anything that's going on, I only want to know the final news if there is anything.
"I have had enough of 'he said this, he said that'. This is a really sensitive situation because you're talking of a chairman and previous manager [Moyes] who had a relationship over 11 years. A lot of things have been said in public and I don't want to be part of that. I'm out of it. But I have never had any instruction that anything has changed."