Marie Claire’s new editor-in- chief, Anne Fulenwider, hasn’t yet decided on a signature ’do, as other top editors, such as Anna Wintour and Graydon Carter, are famous for. “It’s a work in progress. I’m still looking for my editor-in-chief hair,” a shoulder-length-tressed Fulenwider told us at Marie Claire’s “Power of Presence” luncheon Wednesday. The event included a panel, led by Fulenwider, with CBS’s Norah O’Donnell, Olivia Wilde, Rachel Roy and the Weinstein Group’s Meryl Poster.