Unfortunately the trick to great execution is to say no a lot.
You need unstoppable people. You want people that are just going to get it done.
It really is true that you become an average of the people you spend the most time with.
You should always know how you're doing against your metrics. You should always have a weekly review meeting every week.
As you grow, it feels hopelessly corporate but it really is worth putting in place these compensation bands.
What you want to do is innovate on your product and your business model, management structure is not where I would try and innovate.