The two sets of actions that the Architect should take to stop sending the false MQLs to the Sales team are to use trigger “Not Score is Changed” on “Demographic Field” and to create a Boolean field and Smart-Campaign called “Demographic MQL Score”. These actions will help the Architect to improve the lead scoring and qualification process, as well as to avoid sending leads that are not ready or qualified to the Sales team. Using trigger “Not Score is Changed” on “Demographic Field” will ensure that leads are scored only once based on their demographic attributes, instead of multiple times based on their behaviors. Creating a Boolean field and Smart-Campaign called “Demographic MQL Score” will enable the Architect to mark leads as Demographic MQLs based on their score and criteria, and to use this field as a filter and trigger for updating the MQL status.

References: https://docs.marketo.com/display/public/DOCS/Scoring+Overview https://docs.marketo.com/display/public/DOCS/Best+Practices%3A+Lead+Scoring