Amazon rolls out a stricter performance review process — with culture as a key metric

1. Amazon formally integrates Leadership Principles in employee evaluations for the first time. 2. A three-tiered system will assess adherence to company values starting this quarter. 3. Only 5% of employees can achieve the top 'role model' rating. 4. CEO Andy Jassy enforces a disciplined workforce and stronger corporate culture. 5. Concerns persist about the controversial performance review process within Amazon.