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 well-fed man keeps and calmly gives forth his infinitesimal portion of eternity. It sounds big in the summer night. And it is, as it always was down the ages, when there was a man with something to tell, and ones, quiet and wise, to listen." - Ray Bradbury