Mark Hurd, the former CEO of HP who resigned in disgrace last month, has joined Oracle as co-president. At the same time, Charles Phillips, co-president and a member of Oracle’s board of directors, has resigned. Hurd will serve alongside Co-President Safra Catz. Wall Street investors are excited about the move: Oracle’s shares were up by 5 percent on Monday morning following the news, which was revealed on Sunday. Larry Ellison, CEO of Oracle, is clearly enthusiastic as well. He has called Hurd’s performance aa HP “brilliant,” while castigating its board for forcing Hurd out.