#5 Need To Recognise the Roles of Product Owners
The rise of iterative and agile based approach to solution and service delivery has evolved into the cross over of the business sponsor roles and technical delivery assurance practitioners into Product Development owners, specialist and managers
I am not sure where this will fit, but it could also be under "Development and Implementation". While "Relationship and Engagement" aspect is covered under "Sales & Marketing --> Product Management"
Other possible skills to consider are
- Product Design
- Digital Design
- Product Development
Attached to Sales and marketing