My biggest problem is resolving disagreements, especially those that have to do with time. Some co-founders work less than others, but negotiating a fluctuating ownership percentage leads to many arguments. As one person's ownership declines, his inclination to work goes down even further in a spiral effect. They lose interest and stop taking initiative on projects. They become an employee: doing the minimum necessary.

The next biggest problem is solving problems that are outside my expertise. I can hack through any code, optimize and scale any database, but I can't figure out how to advertise a product effectively or get users. These problems stem from my lack of ability to network with others effectively.

Of course, I think solving these issues are at the core of the difference between a wanna-be founder and a real founder. I hope I can learn it.