New attorneys navigating legal careers through General Practice exploration

Is it better for a new attorney to develop into a jack-of-all-trades, general practice attorney, or to focus on a more precise practice area?
See this article for a short discussion on how a new attorney can find their way:

http://www.abajournal.com/news/article/ask_daliah_its_ok_to_start_as_a_generalist_then_choose_a_practice/