An ITAM Review reader has to meet the following audit controls in compliance with ISO/IEC 27001, the Infosec standard.
There are compelling commercial bottom line reasons to meet this standard ( i.e. "We won't trade / partner with organisations not meeting 27001 etc.") as well as demonstrating the quality of your Infosec practice.
In comparison, ISO/IEC 19770 business benefits are less obvious. You have an extraordinarily strong SAM function, you might attract more external SAM talent to your team because of your prowess, you might negotiate better audit terms and perhaps it provides a solid defence when faced with an audit (Why would a vendor go to the expense of auditing a company who is managing their estate to ISO standards). Finally, it also provides a solid goal and focus for the team, meeting and maintaining the standard and external validation to demonstrate the quality of your practice.
How can ISO/IEC 19770 add value to or benefit 27001? Why would an organisation explore 19770 if they are already going 27001? Surely anyone meeting 27001 objectives is also checking off a lot of 19770 objectives? How can we leverage this?