I totally agree that Carlos needs to learn a few things about pacing himself, and about patience.
As to your first point, though...I wonder if that's as easy for Novak as it once was. Personally, I thought that was one of the things that happened to him in the Wimbledon final last month. He hadn't needed his A game the whole tournament, nor even in the first set of the final. He just played slow, kept the ball between the lines, and let the kid's nerves and over-anxiousness do the rest, which didn't take long. But later in the 2nd, esp. in the TB, Novak finally did need his A-game, but when he looked in his pocket, he couldn't find it. It showed up in flashes for the rest of the match...most of the 4th. But I wonder if he can just summon it at will like he once did. I have said, and I stand by the notion that it's too early to declare Djokovic washed up, however, this might be one of the ways that age starts to catch up with him.