A. Sit down and go over rev model change &#x2F; secret Series A. Let him speak 90% of the time. Then; revisit the roles&#x2F;responsibilities you both signed on for. Reiterate the role of CEO; overseeing scale, high-level items and that it&#x27;s imperative to stay focused on such, keeping tech-related accountability to you.<p>B. Communicate via all-hands more often, so his micromanaging efforts are blatantly obvious, allowing objectives to realign as a whole.<p>---<p>I&#x27;ve been in a similar spot previously; heavy written email to a co-founder and all. Don&#x27;t send it. Don&#x27;t blow it up. Approach this from a tone of strategic tone and not emotional.