IAC chairman Barry Diller, a.k.a. Mr. Diane von Furstenberg, was on CNBC's Power Lunch show today, talking about his decision to break up the company into itty bitty pieces. Asked why, after years of talking up the benefits of keeping disparate Internet properties together, Diller changed direction, the media mogul dodged several times before stammering his way to an answer. "Well, as I said, having everything under one roof is good until the roof may collapse because of the, so to speak, weight growing up underneath." Come again? Diller's media training kicks in at this point, as he realizes his error. "How's that for an awkward thing?"