Users need to be able to not only view published data sources on Tableau Server but they need a search function that allows them to search for specific data elements across different data sources. In our world a user would like to search for all data sources that have the provider name attribute. The results would return any data source that contains provider name or something similar. Microsoft's Power BI tool has something along these lines called Enterprise Data Search. As Tableau continues to make Server a solution for enterprise BI it needs to start incorporating these features (without making it suck like enterprise BI tools - please keep on keeping it real!).