Roles change faster than people, and executive tenures are often short. In cases of true rapid scale (a business that’s 3–10×ing every year), I tell people to expect leaders to last about 18 months. Let them surprise you by lasting longer, but don’t let it surprise you if it’s shorter.
A mentor is typically someone who has been in the role before. You go to him for advice or they can give you their perspective/ experience about things
A coaching relationship is different. They hold space for you, ask questions to help you figure out what’s best for you.