What I think we see out of Kaep is simply Kaep seeing an open WR, throwing to the the open WR. There's no consistent coverage read involved. After the snap, he pick a side, scans the field to visually see who's open. There's no anticipation to wether his guy will get open or not going to get open, because there's no coverage read. So it takes him longer in the pocket to wait and visually see to get rid of the ball instead of anticipating. This is more evident if his 1st option is taken away. He would struggle to scan the field to visually see who else is open, it's time consuming. Instead of having an idea through coverage read and recognition, where to go next. Obviously, if he sees his first option is open then there's no scanning or reading involved, we don't see the hesitation, the holding to the ball too long, or running and abandoning the whole concept side altogether.
So defense recognized the concept after the snap. They take away the usual first read of that concept. Then wait to see how Kaep struggle to find another option. Let the rush do their job on Kaep.
On film break down you will see he can just as easily hit the open guy on some more complex concepts, as laying an egg on the more simple ones. Why is that? Might just coincide with who he sees open at the time, with no coverage read recognition.
[ Edited by qnnhan7 on Mar 4, 2016 at 8:01 AM ]