Where does he imply that this is only for huge companies? Even small start-ups have executives, staff, and a board. The lesson is the same no matter the scale.

Where does he imply that this is only for huge companies? Even small start-ups have executives, staff, and a board. The lesson is the same no matter the scale. If you hire a CTO and then have to fire that CTO, it's most likely your screw up.