???At the core of this business, we must have ??? as much as we can ??? full dedication,??? said Pierre-Yves Roussel, chief executive officer of the fashion division at LVMH Mo??t Hennessy Louis Vuitton, which includes brands such as Celine, Loewe, Givenchy and Emilio Pucci. ???Regardless of the talent, the amount of time you spend on things becomes critical.