Federal authorities have been tight lipped about the investigation into former Buncombe County manager Wanda Greene. She hasn't been charged with anything, but there has been a whirlwind of activity and revelations since Greene retired earlier this year after 20 years in the position. The latest is that she awarded herself with a $241-thousand 'retention incentive' right before she retired - meaning she earned more than $500-thousand in her final six months on the job. Similar 'retention