A QB should expect 2.5 seconds to throw the ball. He cannot take the snap, drop back, think about who to throw to, wait until they're open, then throw. JG is physically 100 times the QB KC is. But JG hasn't made throws like the one where KC hit the hot receiver for a big play after first going in. JG CAN make that throw... he cannot make that read. Same with the slant later in the drive.
KC is never going to be a great QB. JG could be one of the best if he could just master the mental part of the game.
The OL is a problem. But it isn't as much of a problem as the JG apologists claim. If he read D's and got the ball out then he wouldn't be getting hit as often. If he hit some hot routes and hurt some D's... they'd stop throwing those types of blitzes against him.
Did you notice what Lock did when UT tried to blitz him? He saw it coming and hit his hot receiver before the D could react. UT had to stop calling those blitzes. I truly wish we saw that out of JG but we don't.