Most Active Ganttheads



I support my clients in transforming their organization to face today's challenges. I use project, program and portfolio management tools and techniques as organization transformation vectors. I am based in Paris, France. I have worked with multiple industries including retail banking, private banking, car rental, video games, utilities, transportation. I have been volunteering with PMI since 2006. I am Knowledge Management Lead for the PMI Change Management CoP.

"Tell me and I'll forget. Show me, and I may not remember. Involve me, and I'll understand." -- Native American Saying

Principal, Risk and Delivery Management, Sierra Systems. PMI volunteer since 1999. Currently PMI Requirements Management CoP Leader.

Email: Twitter: @rricardorr12

PMP and PgMP with extensive experience in projects supporting new technology, system development, and enterprise wide applications. Experience ranges from writing system requirements, to managing application developers, to administration of enterprise wide billing applications, to project managing Enterprise Application Implementation. I am a leading speaker on implementing project management.

Sr Program Manager & Diversity Champion, Leadership COP Council Member for PMI

Mr. Mack provides a combination of managerial skills and technical skills in the area of software development with an emphasis on agile development practices. His communications skills have allowed him to work effectively throughout the corporate hierarchy, working with stakeholders ranging from operations staff and users to C-level managers.

Serving as a business partner for the volunteer leadership of PMI communities of practice, supporting them as they develop and deliver planned activities to enhance member value through the exchange of knowledge.


"No opera plot can be sensible, for in sensible situations people do not sing."

- W.H. Auden