The brilliant career of conductor Carlos Kleiber could have been even more memorable, says Harvey Sachs, had the man been able to tolerate even the smallest error. Time management is perhaps a conductor’s most important skill, and while Kleiber was adored by his musicians, his tendency to pounce on minutiae often made it difficult for performances to gel in a larger sense. “His maniacal perfectionism and the sense of desolating frustration that overwhelmed him when his goals were not met must have had something to do with his increasing isolation.”