I ran across a paper published by my friend Betha L. Whitlow, the director of the Visual Resources Collection at Washington University, titled "The Shock of the New: Using Youth and Inexperience as Tools for Success."  In the paper (link to Word document), Betha argues that newcomers to her field of Visual Resources should view their youth and inexperience as distinct advantages to be leveraged, not handicaps to be overcome: 

[Because] there are still many people at your institution who are unable to letgo of the previous culture, thus limiting their ability to move forwardand offer your institution a new and highly productive perspective ... [i]t is my belief that by the very nature of being a [young] Visual Resources professional, you are uniquely positioned to be at the forefront of changes in the culture of your institution. With just a little bit of a brave and diplomatic push forward, [you] can embody the new role of the resource provider, promote interdisciplinary teaching and learning, be the model of the flexible professional, and tread the fine line between providing access to solid yet technologically innovative resources.

Young professionals, take this advice to heart.  There are plenty of things you don't know, and even more things you'll never know.  Get used to it.  Use your ignorance to your benefit.  The most significant advantage you possess over those who've come before you is that you don't believe what they do.  Because you've never "always done it that way," you're free to do it differently.  Question the business model.  Deliver products (yes, products) and services your elders would never consider.  Embrace technology.  Innovate.  Revel in your inexperience.  You have but one opportunity to start from scratch.  Don't waste it.