As for me, any person can learn anything if there's enough motivation. If you really want doing small business, consider your role in it and apply for corresponding posistion. Although it may be usefull to work in the bigger team for a while (espessially if you have no "explosive" ideas).
You see, in small team your decision often comes last point. Very often there's no one to guide, to prove you wrong. Just take a measure of responsibility.