What happens when an implemented change produces good results, but is not what was intended

You are an executive at a midsized. The company recently experienced  One of yur peers asks you, “I know we wanted these changes, but are things turning out the way we intended?” How would you answer this? What data and information would you need to evaluate to provide an accurate answer? What happens when an implemented change produces good results, but is not what was intended?

Looking for an answer in about 200 words only please