About an hour after learning that a senior UW athletic official was accused of sexual assault, interim UW-Madison Chancellor David Ward called Athletic Director Barry Alvarez with a mandate. The athletics department should not interfere with an investigation into John Chadima, Ward told Alvarez, nor should Alvarez run a parallel investigation. That?s according to the investigation file from the first inquiry into Chadima, who resigned as senior associate athletic director on Jan. 6.