In the 7 November 2010 issue of the NY Times is an interview with Martha Samuelson, Ask Your Mentor for Help, Not for Brownie Points. Samuelson is the president and CEO of Analysis Group, an economics consulting firm.
I think this short interview should be read by all managers (and subordinates) interested in leadership and mentoring.
Thanks to JCC Jr for directing me to this article.
-RichardH