Warren Buffett may be the Oracle of Omaha, but his track record isn’t perfect. Just look to his losing airline play that saw Buffett dump a slew of airline stocks, including Delta (NYSE:DAL) and American (NASDAQ:AAL), at or near their initial pandemic bottom in May 2020 — companies which, like Delta, nearly doubled in the interim.Likewise, many consider Buffett’s age a concern as Berkshire Hathaway’s (NYSE:BRK-A, NYSE:BRK-B) future remains uncertain. While always a concern, investors’ fears magnified after ...