We've all heard the issues over the triple constraint, and whether it should include scope, time, and cost, or other factors as well. But the "real" triple constraint often goes unnoticed. And that is the old trio of "people, processes, and technology".
We need to invest in all three in order to have project success. By "people," I'm not only referring to investing in leadership training for project managers, but also to having an organizational structure that's aligned and not set up for conflict.
And, while processes are critical, some things cannot be "processized," such as leadership and stakeholder management. And processes alone, without the technology to make it efficient, can also be a burden.
So next time you're analyzing the success or failure of your project, consider the impact that people, processes, and technology had on that result. There may be some eye-openers.