It is insane how bad they are on transition defense as well, Memphis kept getting quite easy buckets on transition as well, they just need to have some sort of hype to get back on defense quicker, they can't just slack off because it's NBA and every team is dangerous if you slack.
That's what happened when a team lacks chemistry, they are not playing on the same page sometimes. The fact that Lebron is trying hard to score more than his average, that means he badly wants to make his team better and he is literally carrying it on his shoulder, without Davis who can help him to win, they'll likely experience more loses against top contender teams in the NBA.