I have worked at this logistics firm for four years. I am qualified. I deliver results. But every promotion goes to an Igbo candidate. The boss is Igbo. The management is Igbo. The "inner circle" speaks Igbo in meetings. I am excluded by design. Is this tribalism or coincidence? In Nigeria, merit is often tribal. We hire our own. We promote our own. We trust our own. It is human nature, but it is also illegal and destructive. Have you ever been professionally marginalized because of your tribe? How did you handle it?