The interviewer would like to know that you would be ready to make an impact on their organization, immediately after being hired. It's important to come to an interview with a 30-90 day strategic plan on how you would impact the business, should you be the successful candidate. Tell the interviewer what your impact goal is, should you be the successful candidate.
"I created a strategic plan for you to take a look at, using one of your biggest clients as an example. This outline shows how I can make an impact as your Marketing Communications Manager in the next 30, 60, and 90 days. First and foremost, my focus would be on getting to know your highest-spending clients by booking face to face meetings with them. It would be a discovery meeting where I would set out to see where we could serve them better, and increase their marketing spend in areas they were lacking."
"If hired today, I would start with analyzing all quantifiable data from the last month, quarter, and year to identify any bottlenecks or shortfalls in productivity. I would make corrections from there. Perhaps this will be in the form of creating better processes, implementing new applications for productivity, or simplifying the project management process. This work will, of course, coincide with your biggest pain-points at the moment."