"I've seen a huge change this season already," Campbell told Vogue UK. "Giorgio Armani used four models of color in his show, and a model of color opened his show, which is something that I haven't seen in a very long time. Jil Sander did; I'm naming names because this is a big improvement."
Campbell has been an outspoken member of The Diversity Coalition, a group formed by former model and activist Bethann Hardison and also includes Iman. Last month, Iman famously declared, "If you don't use black models, then we boycott."
"There were more black models working [in the '70s] than it is happening in 2013," Iman said in an interview earlier this month. "There is a time when silence is not acceptable at all. And if the conversation cannot be had publicly in our industry, then inherently there is something wrong with the industry."