This team is obviously not good enough. You need a strong bench and have options in the playoffs. Dallas has a bunch of different options in terms or deciding when to start certain players and like that.
I'm NOT saying this team won't succeed in the playoffs, I'm not saying they won't go to the finals, but as of right now this roster doesn't look like it can manage it. It's either that or the players just don't give a about winning right now, which is hard to see because guys like Manu, TD, TP, and Bowen bust their balls every game.