Always when you hear the word "Enterprise" and it's not related to Star Trek it usually means "company that has made it so far and so stable up on the food chain that from now on they don't need to work hard anymore". If you have never worked in Enterprise software development, think about putting 100 first semester students into a room full of drugs and costumes and then letting them act "professional".
What do you think happens if you hand over a relatively well developed software to such a team? Now let a few years pass and you have today's Skype.
What do you think happens if you hand over a relatively well developed software to such a team? Now let a few years pass and you have today's Skype.