回复：lg的工作量是同事的几倍，他很不平

He needs work hard and smart so that his boss and others can see what achievements, contribution, business impacts he made.

It is beyond his job's function to complain that other people performance. It is his boss's job. If your LG works hard and effectively, he can present a lot during his performance review. If he did not receive proper promotion or raise, then he should have checked him a long time ago.