Guardian Twitter COO, ‘co-CEO’ and ‘Mr Fix It’ Ali Rowghani resigns Twitter COO, ‘co-CEO’ and ‘Mr Fix It’ Ali Rowghani resigns Guardian Twitter COO, ‘co-CEO’ and ‘Mr Fix It’ Ali Rowghani resigns Guardian Twitter COO, ‘co-CEO’ and ‘Mr Fix It’ Ali Rowghani resigns Guardian