It's become popular in recent years to say that the idea doesn't matter.
Facebook has this famous poster that says move fast and break things. But at the same time they manage to be obsessed with quality.
We hear again and again from founders, that they wish they had waited to start a startup until they came up with an idea they really loved.
You can't be focussed without really great communication
You have to be intense. This only comes from the CEO, this only comes from the founders.
So you should always stay on top of people's vesting schedules.