IIn retrospect, placing giant Heinz Tomato Ketchup bottles at the Berkshire Hathaway annual meeting in Omaha was not a particularly well-regarded marketing piece.
It was a very tangible reminder of what many consider the biggest mistake in Warren Buffett's investment career, dating back more than 60 years. Whisper quietly, but some people are asking if Sage of Omaha, 88, is losing his magic touch.
It was a few months of testing for Buffett, who faced some tough questions at Berkshire Hathaway's annual meeting last weekend.
Coca-Cola, which holds about 10% of the capital, is performing poorly and some question why it is being faithful …