I'm not sure why Harley is even this. She was never a member until the New 52 and the stories form there have mostly sucked. Really wish they would focus on the older version with Bronze Tiger, Flagg, Deadshot, and Digger. In truth though I probably won't give much of a damn what they do if they hire CCH Pounder to play Waller. They can have my money regardless if they do that.
This looks potentially great. So happy to see so many MC2 characters involved though I worry not seeing Mayday. I wonder how many more characters will be involved as despite not being on the promotional art here, there will be X-men in the story.
They are like SHIELD, meaning unless the story is actually taking place in a book of its own, no they don't do anything right. Its actually rather annoying considering Fury and Brand themselves are incredibly competent.