Regardless of core skill area, I want my Board members to argue with me.

FORBES: You should want very engaged VCs

Simply put, Judson defines extreme outsourcing as sending every possible function outside of your business, except the unique, core skill that lets you create value.

FORBES: Extreme Outsourcing

Most people are terrible at self-assessment, a core skill that is needed to succeed, says Peggy Klaus, an executive coach from Berkeley, Calif.

WSJ: Cultivating Your 'Soft Skills' Can Help You Get Ahead in Your Job

Jun Do is an idealist and the book's moral core, but he also possesses an uncommon skill for turning the government's mythmaking to his favor.

WSJ: Book review: The Orphan Master's Son

Teams from our core businesses are working together, sharing experiences, and providing complementary skill sets to create new opportunities and better serve our customers.

FORBES: AIG Digests $2B Hurricane Sandy Loss To Handily Beat Profit Estimates

Balance is a crucial skill for surfers and one reason that many people who surf do exercises that strengthen the core in their out-of-water workouts.

WSJ: For the Love of Surfing and Wine Country

The core competence of tomorrow's e-commerce successes will be the ability to change quickly, a skill perhaps even more valuable than knowledge of any particular market.

ECONOMIST: In one form or another, electronic commerce is here to stay