City won 2-0 away against West Ham at Upton Park on Saturday.
He said: “I am delighted obviously – it looks like I am back and that’s great.”
Eriksson has spent more than £40million so far this summer.
He continued: “Only stupid people would claim I have bought players I know nothing about.
“I have an extensive scouting network and know everything about them. They are good young players who will get better.”
