Oklahoman An Oklahoma City charter school leader said an investigative audit ordered for his schools is an unwarranted attack. Chris Brewster said he was blindsided Monday night when Oklahoma City Public Schools requested a state audit of Santa Fe South Charter Schools, where he is superintendent. The Oklahoma City school district has authorized Santa Fe South’s charter contract for 19 years. Brewster said district officials have never approached him about financial concerns, including in the days leading up to the audit request. “This is what infuriates me,” Brewster said. “If it wasn’t personally motivated, then they should have had the professional courtesy to reach out and ask us about this. It can only be personally motivated at this point.”