Tracy Britt Cool has been busy acquiring midsized companies — ones too small for her old boss Warren Buffett at Berkshire Hathaway — and now she wants to build a close-knit community for these smaller businesses. Unlike the Berkshire CEO's laissez-faire approach to managing his companies, however, Cool is more hands-on, guiding company leaders through hiring and developing strategies. "We want to be the trusted home for midsized companies," Cool said in an interview. Buffett influence Cool famously got a job working for Buffett as his financial assistant by sending the "Oracle of Omaha" a letter after graduating Harvard Business School. Cool declined to comment on her relationship with Buffett or her experience at Berkshire.

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Persons: Tracy Britt Cool, Warren Buffett, Berkshire Hathaway —, Buffett, Charlotte, Kanbrick, Brian Humphrey, Cool, Kanbrick hasn't, Benjamin Moore, it's Organizations: Berkshire Hathaway, Elite, Cool, Harvard Business School, Oriental Trading Company, Systems Locations: Berkshire, Nashville, Kansas, Omaha, Pennsylvania