I started hearing about this right after the trade. To me it sounded like the Braves front office was doing everything to deflect the heat they were getting from their fans for not landing Pence or Beltran. They have leaked names to their beat writer, including this:
"It has been reported that Wren offered Mike Minor, the Braves’ third-best pitching prospect"
I believe that "report" was a rumor from Buster Onley.