Warren Buffett, The Lost Tycoon

No typo here. I do mean lost tycoon, not F.Scott Fitzgerald's The Last Tycoon, about his fictional movie mogul, Monroe Stahr. I'm bothered by Buffett’s final morphing into his staid money management construct, saddling himself with underperforming big capitalization properties like ExxonMobil, IBM and Wal-Mart.