Final answer:
Managers often view millennials as being overly self-confident and self-centered, which are cited as negative traits in younger workers based on a report from American Express and Millennial Branding.
Step-by-step explanation:
Based on a report issued by American Express and Millennial Branding, managers often cite being overly self-confident and self-centered as negative traits of young workers, particularly millennials. These attitudinal differences can challenge managers in terms of integrating young employees into an organizational culture originally created by older generations such as the baby boomers. To engage millennials effectively, alternative approaches such as reverse mentoring are suggested, leveraging millennials' technological savvy while offering them the feedback and guidance they seek.