How to create a package in Self Service & Push a Policy to overlap legacy product

Because Office 2011 and Office 2016 are very different with the way the programs and support files are organized, you can't just drop the new one in to replace the old (assuming you mean overlap = replace). You'll probably need to add a script to the Policy that deletes the Office 2011 files and folders from /Applications.

You could do this a few ways. I tend to package Office as a .DMG and index it via Casper Admin, which allows for an automated un-install later. I haven't run 2016 yet and so can't be too specific, but I would probably create a policy that uses either that 'un-install' package I just talked about or a removal script "before" and then the office 2016 installer .dmg or .pkg.

Here's a script to uninstall existing Office 2011 components...

#!/bin/sh

osascript -e 'tell application "Microsoft Database Daemon" to quit'
osascript -e 'tell application "Microsoft AU Daemon" to quit'
osascript -e 'tell application "Office365Service" to quit'

rm -rf /Applications/Microsoft Office 2011
rm -rf /Applications/Remote Desktop Connection.app
rm /Library/LaunchDaemons/com.microsoft.office.*
rm /Library/Preferences/com.microsoft.office.*
rm /Library/PrivilegedHelperTools/com.microsoft.office.*
rm -rf /Library/Application Support/Microsoft
rm -rf /Library/Fonts/Microsoft
rm /Library/Receipts/Office2011_*
rm /private/var/db/receipts/com.microsoft.office.*
rm /private/var/db/receipts/com.microsoft.package.Microsoft_*
rm -rf ~/Library/Application Support/Microsoft/Office
rm -rf ~/Documents/Microsoft User Data
rm -rf ~/Library/Containers/com.microsoft.Office*
rm -rf ~/Library/Group Containers/*.Office*
rm ~/Library/Preferences/com.microsoft.*
rm ~/Library/Preferences/ByHost/com.microsoft.*

A colleague wrote it, I'd have skipped the osascript lines and used killall. I'd also (and probably will) add lines to kill/quit Word, Excel, Powerpoint, and Outlook too.

Then you can install Office 2016.

I should add, I had both version installed for weeks with little impact on either. But I live dangerously and don't recommend it.

@cwaldrip I was wondering about that. I run both 2008 and 2011 side by side without much fuss. Still, I only use either one to trouble shoot the other ;-)