Continued the modification for fixing of the query and design of the Resource by Managers page to properly view the resource per managers, tested the modified page, as per testing, it is now viewing resources per business unit and managers, modified the query again to view the resource by team lead as well, checked the modified query, as per checking, the display is destroyed, revert the changes, the display, for now, is per managers, there is no tag that can be used to determine the team lead, will create a query to determine the team lead under manager and the resources under a team lead.
Continued to fix the multi-select dropdown for multiple selections of the ticket manager, change the script used as the previously added script is now taking effect, tested the modified web app, as per testing the dropdown is now taking effect but it is now searching based on the selected ticket manager, modified the query to fix this, tested the web app again, as per testing, it is still now taking effect, modified the blade as well to filter the data correctly, tested the web application again, as per testing, it is now taking effect, the data displayed based on the selected ticket manager on the filter, tried to download the  report, as per downloading, the filter did not take effect on it, modified the function for download and apply the same changes made in search into download, tested the web application again, as per testing, it's still not taking effect, debug the web app to see why it is now taking effect, as per checking, the condition for adding the where statement in the query for ticket manager is not met because the resource has no value, modified the web application to meet the condition for the where statement and to fix the problem, tested the modified function, and as per checking, it is now taking effect. Tested all the changes on my local, and as per testing and checking, it is correct and successful. 
Deployed the changes in pat-test, as per testing, an err