I read in Gallup's book on employee engagement that an employee's view of the company they work for has everything to do with whom they report to. Even if you have a great culture, history, reputation, etc., if some of your people are working for an idiot, those people will not be engaged and they will think poorly of the company. The power supervisors at all levels have to ruin or make your culture and therefore employee engagement is huge, because employee engagement can make or break your company. That’s why I say you need to measure it.