If it's Jensen's choice, who can blame him?
He may link up with Laudrup again, now that Laudrup is a free agent and won't be short of offers.
Plus, if he knows that Kean isn't about to be sacked anytime soon, why stay on a blatently sinking ship?
If it's a club decision then why just remove the assistant manager?
Even if they replace him with an experienced number 2, which shows that they're willing to make some changes, why not make the change that needs making and get rid of the real problem (Kean)?