Team makes too many dumb mistakes, they don't really play as a team, defense seems to be opt-in/if you feel like it, and whenever they go through shooting slumps they give up leads in a hurry(or straight lose games). They play as though they feel like they can make the next shot, like a gambling addict who believes they'll be 'due', but without the actual legwork to make it happen, they just keep coming up short. The most frustrating thing though is the sheer lack of consistency. They've had a couple of games go their way this season, but almost every other game has not and even if they've played alright/passable, they just can't seem to string together and cohesion as a team.
Mentally they seem weak. I question their 'heart'(i.e. are they even all trying to win? seems like some of them are just happy to be getting a pay check). They seem to straight up forfeit games at times and there has been a bad tendency to point fingers after losses.
Yeah, things aren't ideal right now. Pau is clearly suffering from the knees, we're missing the star point guard and his relief, and maybe Dwight isn't 100%, and Kobe can't dominate games like he used to, but great teams figure it out, or at least lose with grace when the chips are down. This Lakers team can't even make losses entertaining.
It's easy to rationalize why Mike Brown was a problem, but what we're seeing since D'antoni would seem to indicate that the bigger problem is more of a chemistry/locker-room/mindset issue, something that the team has to consciously come together on and make the commitment to be on the same page, because there really shouldn't be this type of performance this regularly for a team this talented on paper.
Or they're just not working hard enough...