David Sokol is Berkshire Hathaway's "Mr. Fix It," Fortune magazine writes in an excellent piece that was recently published.
Warren Buffett has increasingly relied on his fellow Omaha native to scout out possible investments for Berkshire and turn around divisions of the company that have fallen on hard times. The article discusses Sokol's efforts at NetJets in detail.
Sokol, the author of "Pleased But Not Satisfied," is presumed to be heir apparent to Buffett on the operations side of Berkshire, though that could change depending on how long Buffett remains at the helm. Hedge fund manager Li Lu is increasingly being mentioned as a candidate to succeed Buffett on the investments side.
Click here to check out some of the recent articles I've done on Guru Focus. Below is an interview with Sokol that accompanied the Fortune piece.