David L. Sokol has been an Interim Chief Executive Officer and Chairman of NetJets, Inc., since August 2009. Mr. Sokol serves as Chairman of the Board and Chief Executive Officer of MidAmerican Energy Holdings Co., a subsidiary of Berkshire Hathaway Inc. Recent Fortune magazine article describes Sokol at Warren Buffett's "Mr. Fix-It."
http://money.cnn.com/2010/07/29/news/companies/buffets_mr_fixit_full.fortune/index.htm