You are so lucky get this kind of manager.
Why you worry about it?
His policy of not allow your guys to share your expertise is actually very good for your job security. Why you compplain, why you worry about.
你應該偷著笑!
反過來,如果老板天天盯著咱, 讓咱把咱會的教給咱的同事,那才是真的要咱的命呀.
Enjoy your nice manager!