Once you have created the site structure, responsibility of owning the content should be transferred to some users so they do not have to come to IT again and again and take away the burden of managing permissions.
To setup this in SharePoint 2010, go to site settings and then create a group, I’m naming it “Sales Reports Content Owners”, give this group Full control and then add members in this group who would own the content.
Secondly, create another group “Sales Reports Content Viewers” and specify the owner’s group name in the group owner field i.e. “Sales Report Content Owners” in our case and that’s it.
Once you’ve set this up, the members of the group specified as group owner will now be able to manage permissions.