"Take this job and shove it" just doesn't cut it any more. At a time when jobs are scarce, it takes spectacular courage to quit one. Maybe that's why we've seen a recent trend of people leaving their jobs with a grand flourish. Today it was now-former Goldman Sachs exec Greg Smith, who scorched the firm on his way out the door with a New York Times op-ed titled, "Why I Am Leaving Goldman Sachs." Yes, the new, smart way to resign now involves grabbing some attention from would-be next employers or patrons to your new startup while making the ex-boss think hard about the culture or direction of his business. That's why quitting is the new mission statement.