"You can imagine the designers' reactions when we first told them," Klum, an executive producer, said, "but it resulted in some really interesting conflicts and partnerships. And that is how designers work in the real world — they do have to work on teams and manage teams — you get to understand their personalities more."
Posen said he aims to be a collaborative player and appreciates what everyone else at his company does, although he is the starting and stopping point of each look that bears his label.
He'll be at the studio solo next week over the holidays, sketching and draping fabric with the music "thumping": It's one of the most wonderful times of the year, he said.
The "Project Runway" season starts Jan. 24.