AI doesn't need you full-time

Here's a thought that's been nagging at me. You know the fractional CFO model — companies that can't justify (or don't need) a full-time finance chief hire one for 10–15 hours a week. It's been a niche arrangement for years, mostly limited to the C-suite and mostly associated with startups that haven't scaled enough for full-time leadership. But I think that model is about to eat everything. And AI is the reason. Part one: the case The productivity math has changed The Harvard Business School study with 758 BCG consultants found that AI-augmented workers were 25% faster and produced 40% higher quality work on tasks within AI's capability range. Below-average performers improved by 43%. Read that again. If AI makes a knowledge worker 25–40% more productive on the right tasks, a single experienced professional can serve multiple clients at quality levels that previously required full-time engagement. The economic argument for hiring one person, five days a week, to do a job that now…