He's a sartorial Ryan Seacrest, a developmental Ferris Bueller, a professional Carlton Banks. (Not up on twentysomethings' media icons? That's the "American Idol" host, the truant Matthew Broderick movie hero, and the overeager Will Smith sidekick in "Fresh Prince of Bel-Air.") At once a hipster and a climber, he is all nonchalance and expectation. He is new, he is annoying, and he and his female counterparts are invading corporate offices across America.