There's a post several rungs down the rail tonight about a publisher who wants four to six months to review a manuscript, and doesn't take simultaneous submissions.
This is stupid from a business standpoint, and why they haven't realized it, I don't know.
First, everyone, and I mean EVERYONE, knows that less than 2% of the work that comes in gets published. This means they're holding 98% of the pool hostage. It's not that hard to sort the crap out in five seconds and respond with a form letter. I do it three days a week and manage to keep up.
Second, good writers will make that publisher their last choice. Frankly, I'd want to be the first choice of every good writer.
Purposely doing things that look arrogant AND inefficient is a patent pending process of the government. You'll probably get sued for infringement, but that's ok. You'll have the papers exclusively for four to six months before a jury of snarling writers gets to decide your fate.