Don’t let the students grade their own tests! When you own the analysis and ROI calculation (instead of your agencies) you will get a more honest view of what is and is not working.
You need to track a lot of information to understand your position in the market. And there are no shortage of ‘MarTech’ companies out there offering ways for you to view that data based on a wide range of sales and marketing tactics that you may employ. Your agency has been all too eager to help you to monitor your marketing efforts as it helps them to control the flow of information about what isn’t going well.