Manuel Pellegrini says his not satisfied despite leading Manchester City to a comprehensive 4-0 rout over Crystal Palace at the Etibad.
The Citizens got their goals through Fabian Delph and David Silva while Sergio Aguero netted twice.
Nigerian youngster Iheanacho was handed his second Premier League started and created the assist for City’s second goal against his favourite opponents in England.
After the game, Pellegrini told BBC Sport: “Was it comfortable? No because you never know in this game. The first half, the two goals gave us more space as they’ve had to go for the draw. That allowed us to use that space and score two more.
“It was a start of two teams that played in midweek. We had to refresh the team as we had less than 72 hours and that is not enough to recover.