If there is no 'but' with your founder entrepreneurs then read no further. You are the exception to the rule and in rarified air. Congrats!
It is much more likely, though, that you have a set of founders with a divergent mix of capabilities and skills, and that your businesses are performing only reasonably well. Not, however, at the level that will generate the all important 10X returns, or greater, as understood by the Power Law. Your people have great vision and mission, and even great product savvy, but are having some difficulty adding the right business 'Capacities' at the right time. In essence, they are guessing; simply because they haven't done it before.
We have scaled and have the time to dedicate to them that you may not. We have the objectivity and perspective that they may not. We understand what happens at each stage of investment. We help them scale and reach their escape velocity, increases the odds of 10x returns, or greater. We have our tag line, but what we really do is we add traction to horsepower. If you see any of the following in one or more of your portfolio companies, we can help: