THE COMPANY MEN: Italian industrialists outshone starlets at the Just Cavalli show on Saturday. The top photo op was Roberto Cavalli with Diesel chief Renzo Rosso, whose company Staff International is now producing Just Cavalli under license. “This new partnership has made me rethink the past,” Cavalli mused. “I am listening to my young customers and offering them what they want.” Also taking in the show was eyewear honcho Maurizio Marcolin. Meanwhile, Cavalli is expecting Courtney Love to attend his signature show on Monday.