Stats can be manipulated, but context needs to taken into account.
Those first few games after the departure of football angelist Russll Martin would be difficult for any manager. Getting thumped in Europe, especially a relative heavy weight like Roma? Can happen. Losing to Celtic having played a significant time with 10 men? Can happen. It took him 5 or 6 games to get going with the rabble he inherited here, but immediately you could see improvement.
Jeez, some people just like to complain.