Katia Verresen's new client had a big problem: He needed to find 3 to 4 extra hours in his day. This, of course, seemed like an impossible feat for an oversubscribed startup founder, but his ability to fundraise and recruit the best talent depended on it. By the time he met Verresen, executive coach to many such founders, he was drained, pessimistic, dreading every week before it started. Even though tech culture champions sleeplessness, overtime and burnout, Verresen has seen how this mindset can lead to failure. To turn it around, her first order of business is to collect as much data on her clients as she can and funnel it into a plan with one goal: Maximizing energy. Physical energy, emotional energy, and mental energy. These are the components of successful execution that are too often overlooked. But the proof is in the pudding. After adopting Verresen's recommendations, her exhausted client said he felt like he had 60% more energy during the day, had a more hopeful outlook, and — by getting more done in the morning — found the four hours he needed in the evening.