The following commentary comes from an independent investor or market observer as part of TheStreet's guest contributor program, which is separate from the company's news coverage.By Tom Taulli, InvestorPlace.com NEW YORK ( InvestorPlace) -- Even when the equities markets are in the bull mode, it's not easy to pull off an IPO. A CEO needs to spend lots of time wooing investors as well as making sure the business is running smoothly. It's a tough balancing act. That's why it is important to have experienced leadership. This certainly has been critical for recent IPOs like Zillow ( Z) and LinkedIn ( LNKD).