I should add generally here - you'll have younger people who exceed their years and older people with more enthusiasm and energy than the former. Experience is

I should add generally here - you'll have younger people who exceed their years and older people with more enthusiasm and energy than the former. Experience is really about making mistakes and learning from them and that takes time - there's really no substitute. People who are ahead of their years usually started earlier and worked harder at it. So the problems I see are a team that's all one or the other and generally that's not good -- it's impossible to find a group of 10 new-grad engineers who all over-perform their age by 10 years.