I do not have experience with the Business Dashboard, but since it is oriented to the Small Business market I am not surprised that it does not process switches like 2960. If you currently have 4 small business switches and 15 enterprise switches I agree that it might not be worth much effort to utilize the Business Dashboard. Looking toward the future if you think you can convince the Boss to go back to purchasing Enterprise class switches then Business Dashboard can be ignored. If you think the Boss may continue to purchase Small Business switches then at some point the Business Dashboard will become a more reasonable tool.
It is not unusual when a new type of switch is deployed replacing a different type of switch that problems are encountered since functionalities and syntax have changed. Perhaps it would be helpful for someone to undertake a review of the configurations of the new switches?
HTH
Rick