Indeed a class of investors does exactly this - they provide unlimited but conditional money, set strict KPIs, embed their own people to steer the efforts in th

Indeed a class of investors does exactly this - they provide unlimited but conditional money, set strict KPIs, embed their own people to steer the efforts in the desired direction, and generally take a hands-on role until they exit in 3-5 years. This investor class is "Private Equity" guys and girls, and they are 10-50 times larger than most VCs we talk about (on headcount, funds raised, investment sizes, reach etc). I think it might be a matter of scale: VCs are tiny and they don't have the resources to take such an active role. Even the crazy successful legends like Accel/Sequoia/Benchmark/A16Z/USV/etc employ fewer people than an average company they invest into ~every month.