But she's a genius....

In my career this line has turned out to be code for putting up with bad behaviour. Geniuses are rare and hard to spot, leading many of us to confuse terrible behavior for a sign of talent.

Superstar employees are the obsession of the corporate world. This group has outsize influence: high-performers have been estimated to be four times as productive as average workers, and research has shown that they may generate 80% of a business’s profits and attract other star employees. They can comprise the top 3% to 20% of a company’s workforce. But when you work as a team a cancerous employee can cause the entire group to fail....

See this