By The Associated PressNEW YORK (AP) â¿¿ Ron Johnson's short-lived tenure as J.C. Penney's CEO will go down as one of the biggest flameouts in corporate America. The former Apple executive was hailed as a big thinker when he was hired by the ailing department store chain but his radical moves ended up alienating shoppers, sent sales plunging and left the company in an even worse situation. He lasted 17 months. But Johnson isn't the only executive to be pushed out after failing to live up to big expectations. Here's a look at some major ousters in recent times. CAROL BARTZ, YAHOO The Internet company hired technology veteran Bartz in 2009, with the goal of bringing in a no-nonsense leader who would develop a clear vision. Bartz shook up Yahoo's management and instituted a cost-cutting program that helped boost the company's earnings. But revenue failed to grow even as the online ad market expanded at a rapid clip. Bartz, known for her very direct approach and sometimes-colorful language, stressed that a turnaround would take time and pleaded for patience from shareholders, pointing out that it took Steve Jobs years to revive Apple after his return in 1997. But after more than 2 Â½ years of financial lethargy, Yahoo ousted Bartz in 2011. The company's chairman fired her over the phone, according to an email Bartz sent from her iPad that was obtained by the All Things D technology blog at the time. LEO APOTHEKER, HEWLETT PACKARD When HP hired Apotheker in November 2010, it was seen as an aggressive push by the company into the software business. But many analysts mocked the choice, considering that Apotheker had just been forced out of his previous job as CEO of German business software maker SAP AG following ill-timed price hikes and widespread employee dissatisfaction.