Lob City more often than not just had terrible injury luck by the time the playoffs rolled around. I can't hold it against them too much. They blew an opportunity or two as well but I think most of their lack of success just boiled down to bad luck.
Last year's failure was pretty embarrassing and this year has been worse so far (but I don't necessarily think the series is over just yet). I think these two seasons have shown that the chemistry just isn't there with the group of guys they have. PG has improved his individual skills over the years, but I think those skills have developed in a way that makes him a more difficult teammate to mesh with than he used to be. I don't think Kawhi is the easiest player to play with either; neither guy is very good as a creator for others. They're mostly just looking to break the defense down and score when they get the ball. The closest that LA has to a creator/ball mover is Rondo and Kennard, one of which literally isn't playing, and the other just isn't good enough anymore to be your best creator.
TLDR: Kawhi and PG are both tremendous players. Kawhi is clearly one of the best scorers and defenders in the league. PG is very good as well, an All-NBA caliber player. But the team, in no small part due to the two of them, is vulnerable to stretches like this because it's basically a collection of scorers that don't really care about moving the ball.
