I don't understand all these codriver changes recently. The most successfull drivers of the past 2 decades, all sticked to their codriver they started with. Loeb, Ogier, Neuville untill recently, Latvala, Hirvonen...

I don't understand the reasons behind it. Sure, it's often not made public. But changing and learning together seems to be a good tactic, if you judge by the past.