Leff Electric (Cleveland): Dan Nitowsky has joined Leff Electric as president and will manage day-to-day operations. Accordingly, Bruce Leff will move into the position of CEO and continue to lead Leff Electric. Nitowsky most recently worked for Kichler Lighting, where he was director of business development. Prior to Kichler, he was the V.P. sales of Mars Electric. During his tenure at Mars, in addition to sales, he had responsibility for overall company performance including the distribution center and branch operations. Prior to Mars, Nitowsky was with General Electric.