George Perez basically confirms all your worst fears about the Nu-52.
On why his Superman story was such a clusterf**k
DC approached me, actually it was Dan Didio who specifically approached me, at that point I was going through my preliminary eye surgery, and my wife was getting concerned I was having trouble focusing on artwork, and maybe doing something where I didn;t have to draw all that detail would have been a way for me to earn money and give my eyes a chance some recovery, so writing, I was loathe to do, because my last experience with writing,,. Unfortunately when you are writing major characters, you sometimes have to make a lot of compromises and I was made certain promises, and unfortunately not through any fault of Dan DiDio, he was no longer the last word, lot of people making decisions, going against each other, contradicting, again in mid story. The people who love my Superman arc, I thank you. What you read, I don’t know. After I wrote it… I told them here’s my script, if you change it, that’s your prerogative, don’t tell me. Don’t ask me to edit it, don’t ask me to correct it, I don’t want to change something that you’re going to change again if you disagree. No no, Superman is a big character, I was flattered by the responsibility, but I thought this was getting a little tough.
Not shocked at all about this one. Perez is probably talking about Time Warner suits here.
And of course, there's Morrison.
It was what they had promised me in the New 52 version of Superman,
I had no idea Grant Morrison was going to be working on another Superman title, I had no idea I was doing it five years ahead, which means, my story I couldn’t do certain things without knowing what he did, and Grant wasn’t telling everybody, so I was kind of stuck,who exists, DC couldn’t give me answers. Oh my gosh, you’re deciding all these things and you mean even you don’t know what’s going on in your books… so I became very frustrated…
And this, my friends, is why the Nu-52 will bomb in the end.
http://www.bleedingcool.com/2012/06/24/george-perez-talking-about-being-rewritten-at-dc-comics/