Sergio Aguero scored a hat-trick in the 3-0 win at the Etihad Stadium on Saturday to mean that Carlos Tevez's wretched penalty failure could even be forgotten.
City, who have now scored 15 goals in four Premier League matches, pulled Roberto Martinez's Wigan apart through the combination play of Aguero, Tevez and David Silva.
Mancini has and always will struggle against top teams. This is why he was sacked from Inter.