Self-esteem

I think extraverts are more focused on themselves than anyone else. They tend to be more closed minded. Thier happiness is success.Introverts are open minded. They try to include everyone. Thier happiness is the people that helped them get to where they are.

When people start doubting themselves they lose motivation. When they lose that motivation they lose the drive to succeed. Yes there is inconsistency.

Yes raising your self esteem would help employees and people as a hole.
Yes you can raise your self esteem by thinking of your successes and lower your esteem by thinking of your failures. This is all possible.

No low self esteem want successes while those who have high self esteem dwell on what went wrong.
Even though it wouldn't be much, just to give someone a pat on the back, tell them good job could raise someones self esteem. Not only help the employees but the job as well. If they know they are doing right they will continue to stive and do their best.