1-800-Flowers CEO and cofounder Jim McCann says he got the best piece of business advice from JPMorgan's Jamie Dimon. AdvertisementAdvertisementThe boss of flower and gifts company 1-800-Flowers said JPMorgan's Jamie Dimon gave him the best business advice — that he didn't need his employees' buy-in while making decisions. "Jim, you spend way too much of your time evangelizing," Dimon told McCann, per the latter's retelling. They don't all need to get it," Dimon told McCann. Dimon told McCann his team only needed to have faith that McCann understood the value of his product.

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Persons: Jim McCann, Jamie Dimon, Dimon, McCann, —, Flowers, JPMorgan's Jamie Dimon, Fortune's Ruth Umoh, Jim, Chris McCann, Jim's, McCann's, David Organizations: Service, CBS, Factory Locations: New York, York, Queens