YouTube CEO Susan Wojcicki won't divulge her biggest fear about competing with Facebook, but she will give them some free advice. From a report: "They should get back to baby pictures," Wojcicki said Monday at the Code Media conference in Huntington Beach, California. Video has been an obsession for Facebook, as it tries to swipe the most advertising dollars migrating off television before YouTube can get them. Facebook has been aggressively advancing the number of clips and live streams that bubble up to the top of your News Feed and has rolled out a central hub for TV-like programming called Watch. "You always have to take competition seriously. You don't win by looking backwards; you win by looking at your customers and looking forward," she said.