As an active Founder, the growth of your venture cannot outgrow your personal rate of growth (at least not in a sustainable way).
Shocking to say, but not surprising - as founder you are the core of your venture. Every decision, every responsibility, and every dilemma rests upon you.
No matter how skilled and brilliant you may be, you can be pulled down by flaky integrity, emotional immaturity, or by clouded perceptions blinding one to reality. Weakness in any of those areas is deadly; it only takes a single mistake there to kill a business.