There tend to be problems when founders step back from the top of the formal power structure. Steve Jobs remains the best example I can think of; he wielded immense influence within Apple in the early 80s, but was ultimately a destructive presence once he no longer had formal power because he would go around his bosses to build his pet project (the original Macintosh) and created a corporate culture of distrust and deception. When he left, Apple fell apart culturally and really had no product vision until he rejoined a decade later and resumed the role of founder-CEO.