The friction between the "business guy" and "programmer" (as in your startup us worth X for every programmer and -X/2 for every MBA) seems to always pop up in startup discussions, and it might lead some astray. Startups aren't about which tasks a business guy should take off a programmer's shoulders or which features a business guy should direct a programmer to build. Startups are an organism, a team. Every founder is going to do stuff, like selling, or something analytical, that is uncomfortable at first. That's what it's about.

The problem seems to arise when once founder/contributor values his or her skill set more than others. This is where you'll find the business person who thinks he/she just needs a programmer to build the killer app he/she designed. BS. But the same goes for a programmer... it is the business that must succeed, finding a product/market fit, building, launching, selling, etc., more than just lines of code.

Ask an advisor/mentor who has built a successful startup before what will be involved in growing the startup you're aiming to build. Look at that list closely and be humble. Think of people who are much better than you at the things at which you're not necessarily at the top of your game, and get them involved. Not people who can sort of do it, people who will rock at it.

Good luck.