Boeing is making leadership changes in its commercial airplanes unit following a recent incident where a panel fell off a 737 Max 9 jet during flight. The head of the 737 Max program is leaving immediately, and other leadership changes have been announced. The company is under pressure to demonstrate its commitment to safety after previous crashes. The incident has led to increased scrutiny of Boeing's quality control processes. The leadership changes aim to show accountability and enhance focus on safety and quality. The incident has raised concerns about the quality of Boeing's planes and has led to calls for the company to address its issues.