From "Initiatives"

National Center for the Laity quotes and makes mention of Russell Shaw's Catholic Laity in the Mission of the Church in their September newsletter, "Initiatives". (here's the link, see page 2 in the On Vocations article)

A personal vocation "is not the same as planning and organizing a career", notes Shaw.

I do heartily recommend (notwithstanding my obvious bias) reading the chapter (I think it is Chapter 7) in this book on personal vocation. It is one of the best explanations I have read-especially for young people-on the topic.