I want some more news. The more I'm reading the more it seems like the Braves were just doing business as usual and Coppy is the scapegoat. And this may have been a convenient excuse to just get rid of him and not look like the jerks.
I don't have enough information either, but if I had to guess I'm thinking the Braves wanted Coppy gone as well, and this kinda happened and opened up a good reasoning to do so. If word has gotten around that nobody wants to trade with your GM and you're getting to the time of your rebuild where you're going to start looking at trades to upgrade the major league roster then that might be a decision you make. I do think there's some legitimacy there. Looking back we traded with a handful of GM's regularly, so we may have had the door shut on many more due to Coppy's wanting to "win" every trade and being so relentless about it. It's the old adage that people do business with people they like and trust. It's the first thing your taught in sales or advertising.