Lewis not driving as fast as he can, forcing Rosberg back a bit by defending harshly. This brings Red Bull/Ferrari closer to Rosberg so they can overtake him easier.
Slow down but not let Nico pass...field catches Nico and starts fighting him, then speed back up and leave him.
'Still don't get the concept. If he slows Nico that much, he's at risk himself of being passed.... And if his slowing Nico caused just Nico to be passed, he would be able to get back by himself when Lewis moved away.... Sounds like hype to me.
I have an awful feeling that somehow this is going to fall into hammy's lap, but I'm still hoping for ROS.