I am an engineer at a small consulting firm, and have been working at this company for over two months. One of my associates has confided in me that he plans to leave the company soon after receiving his P.E., which will be soon. He himself has only been employed here for 5 months. One of his reasons for leaving is a difference(s) in opinion(s) with our boss. I don't want to take sides with anyone, because I have my own opinions. However, I do have a vested interest in the company, as my objective is to help grow its business. Should I let my boss know that this person is unhappy and might leave the company, or wait until this person has left the company? My concern is that the company would find out that I knew he was going to leave, and that might reflect poorly on me. What to do?