Don’t promote someone based on how well they speak or how they carry themselves. Promote people based on their efforts and the results they produce for your company.
When we promote someone based on our “gut feeling” rather than actual results, we create situations where office politicians who don’t achieve much for the company (and just have good relationships with the boss) can get ahead, and your real contributors get side lined.
Before promoting someone, ask ourselves “What did this person actually achieve for us? Is my decision based on my emotions or facts?”.
Don’t get distracted or blindsided by people that speak eloquently. And remind yourself that just because someone speaks well, doesn’t mean they are a good leader. Because leadership is more than just being able to “sound capable”. You actually have to BE capable.