"It is not a problem," said Mancini. "They played together against Blackpool. It is normal for my teams to play with two strikers. That is what I usually like to do."
Adebayor scored his first after 12 minutes, collecting a pass from Patrick Vieira before turning his marker and finishing neatly from the edge of the area.
His second was a 24th-minute header from a David Silva cross, with the Spaniard also providing the assist for his third - a close-range side-foot finish in the second half.
While Adebayor took the headlines, Silva played an excellent supporting role in what was a strong performance by City, which only dipped slightly in a 20-minute spell after half-time, during which Lech scored their goal through Joel Tshibamba.
"For David Silva it is easy to play football," stated Mancini. "Everything is easy for him.
"As a team, I thought we played very well in the first half - we scored two goals and did some good things - but we were ordinary in the first 20 minutes of the second. For a little while I was a bit afraid because I thought Lech could cause some problems, but the third goal finished the game."
Lech manager Jacek Zielinski was not too downhearted to lose a game he feels will be the toughest they will face in the group.
"Manchester City played extremely well," he admitted. "It was a good lesson for us. We had some plans but the reality turned out to be somewhat different."
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