It’s easy to get lost in the celebration of high flying companies that quickly take an idea to market, scale and sell. It’s exciting, financially lucrative and makes for great reading. We’ve been fortunate enough to have a few companies like that in the Foundry portfolio (Zynga, AdMeld and Gist all went from idea to sale/IPO in a relatively short period of time). But the reality is that most companies take years (and years and years) to develop – the average time from company founding to exit event is now approaching 10 years. And in many respects, being a great entrepreneur isn’t about coming up with company ideas and executing against an initial product spec. Its really about the perseverance,…