When Jobs was alive, investors were afraid he was going to die. Now that he's gone, he's no longer here. And that's even worse. What else could explain the rapid surges and equally as swift pullbacks Apple has experienced over the last year or so? Sure, you can blame market manipulation conspiracies, hedge funds, mutual funds profit taking, the broader market, the economy, the rumor mill or sheer stupidity, but these excuses do not cut it. It's all about investor confidence.Investor confidence in Apple's future. It was there with Jobs. It's there at Amazon.com ( AMZN) with Jeff Bezos, but it's clearly not there with Tim Cook as Apple CEO. Cook just does not display that Apple swagger I spoke of while hanging at the Apple Store in Santa Monica over the weekend.