A person who thinks of Daniel Barenboim solely as an artist might be tempted to explain or excuse his behavior: as a result of the “Latin-American blood in my body” (his, rather offensive, words) or a tortured genius’s quest for perfection. As a manager, however, he has a clear responsibility toward his employees, both musicians and administrators. A good leader honors boundaries and takes setbacks in stride. Barenboim appears to struggle with both. – Van