Wall Street appears unperturbed about the changing of the guard at Radian Group Inc. as analysts expressed confidence in the company’s performance and the non-traditional business path it will follow in the next 12 months. Analysts rated Radian’s stock to “outperform” the overall market as the new chief executive officer Sanford Ibrahim, former president and chief executive of GreenPoint Mortgage, prepares to take the Philadelphia-based MI deeper into Ibrahim’s familiar neighborhood, the nonprime mortgage…