Permissions to be granted to developers to investigate jobs, queries, and packages

I have just installed a new sql server 2014 server, migrated some databases there and connected some applications to them. These servers have also SSAS and SSIS. I have a group of developers there were helping with the connections and doing all the last developments on packages, and data warehousing stuff. Now that everything is working, I want to remove the sysadmin permissions that I had previously granted them. Now, these guys they have some requirements, that I am willing to grant them, so that it is less weight on my shoulders: > 1) They need to see query plans, 2) they need to identify missing > indexes and other expensive operations like key lookups, etc > > 3) they need to query sys views and tables - monitor what procedures > are running, collect WAIT STATS, etc > > 4) they also need to troubleshoot JOBS - so they need to be able to > see them, see the job history, in order to find out what went wrong > > 5) they also need to see everything in the SSIS integration catalog, > so that when something goes wrong inside one of there packages they > are able to figure it out by themselves I have granted them with the following **SERVER permissions**: > 1) view server state > 2) view any definition on the **MSDB database**: I got some ideas from "SQL Server Agent Fixed Database Roles " and finally on the **SSISDB database** Anything else that I should be aware of?