SAP AG (NYSE:SAP) (FRA:SAP) (ETR:SAP) has announced that it will change from having two co-CEOs to a more traditional structure next year. Co-CEO Jim Hagemann Snabe is expected to leave his position and join the supervisory board following a shareholder vote in May of next year, leaving fellow co-CEO in charge, Cornelius Rahn of Bloomberg reports. SAP briefly most valuable company in Germany SAP AG (NYSE:SAP) (FRA:SAP) (ETR:SAP) first appointed the two men in 2010 to replace Leo Apotheker, who many shareholders held responsible for the company’s stagnant revenues. Since then SAP has seen its share price go up 70…