Nine Project Management Fallacies: III

Peter loved his chocolate chip cookies, but he liked this conversation with Trish and Nan even more. Holding his hands over the side of his chair to brush the cookie crumbs off them onto the ground, he added "And his discussion of wishful thinking was really insightful."

Nan broke off a tiny chunk of her cookie, ate it, and sipped her coffee. "Mmmm, I thought so too," she said. "Knowing that we fall into these fallacy traps because of our humanness made me more accepting of it, less guilty."

Trish was puzzled. "Yeah, but how does that help the project?"

"That's just it," said Nan. "Knowing that the fallacies are part of being human makes it easier to acknowledge these errors when we make them."

Peter finished Nan's thought. "And that way we can own up to them faster, maybe even before they do any damage."

Fallacies aren't just false. Because they have a deep connection to what we are as human beings, they'll never go away. Here's Part III of a little catalog of the fallacies of project management. For Part II, see "Nine Project Management Fallacies: II," Point Lookout for December 14, 2005, and for Part IV, see "Nine Project Management Fallacies: IV," Point Lookout for January 11, 2006.

The Fungibility Fallacy

The Fungibility Fallacy holds that each person produces one hour of output in one hour, and that we can substitute people for one another. Terms that suggest this fallacy are man-month headcount and FTE.

Often, only a few people can perform certain tasks. Using the project management tools that distinguish the skills of large numbers of unique individuals takes time and effort, and even then they produce somewhat fictitious results.

And running "lean and mean" makes the problem worse. If you count the cost of delays and lost market windows due to overloading key people, running a little "fatter and kinder" might actually be more profitable.

The Linearity Fallacy

Fallacies have
a deep connection
to what we are
as human beings

This fallacy holds that the human effort required to execute a project scales in proportion to project attributes such as project size or total budget.

Not only do operating costs per unit of output grow rapidly with project size, but the converse is also true: costs decline unexpectedly slowly as we scale the project down in size. This happens because we have difficulty abandoning control processes as we move down in size. We lose in both directions.

Project management is an inherently nonlinear activity. The complexity of an effort grows not in proportion to the effort, but combinatorially with the size of the effort, following the growth in the number of possible person-to-person interactions with increasing team size.

These two fallacies both arise because of our hopes and wishes. We long for a world where we can substitute any person for any other; for a world where doubling resources halves the schedule. But longing doesn't make it so. In the next and final installment of this series we'll look at fallacies that arise from failures of critical thinking. First in this series  Next in this series  Top    Next Issue

Are your projects always (or almost always) late and over budget? Are your project teams plagued by turnover, burnout, and high defect rates? Turn your culture around. Read 52 Tips for Leaders of Project-Oriented Organizations, filled with tips and techniques for organizational leaders. Order Now!

Your comments are welcome

About Point Lookout

Thank you for reading this article. I hope you enjoyed it and found it useful, and that you'll consider recommending it to a friend.

Point Lookout is a free weekly email newsletter. Browse the archive of past issues. Subscribe for free.

Support Point Lookout by joining the Friends of Point Lookout, as an individual or as an organization.

Do you face a complex interpersonal situation? Send it in, anonymously if you like, and I'll give you my two cents.

Related articles

More articles on Project Management:

Managing Wishful Thinking Risk

When things go wrong, and we look back at how we got there, we must sometimes admit to wishful thinking. Here's a framework for managing the risk of wishful thinking.

Unresponsive Suppliers: I

If we depend on suppliers for some tasks in a project, or for necessary materials, their performance can affect our ability to meet deadlines. What can we do when a supplier's performance is problematic, and the supplier doesn't respond to our increasingly urgent pleas for attention?

Unresponsive Suppliers: II

When a project depends on external suppliers for some tasks and materials, supplier performance can affect our ability to meet deadlines. How can communication help us get what we need from unresponsive suppliers?

Missing the Obvious: I

At times, when the unexpected occurs, we recognize with hindsight that the unexpected could have been expected. How do we miss the obvious? What's happening when we do?

Anticipating Absence: Passings

In times more normal than ours, co-workers who pass on tend to do so one at a time. Disease or accidents rarely strike many co-workers in the same week, month, or year. There are exceptions — 9/11 was one such. This pandemic is another.

See also Project Management and Critical Thinking at Work for more related articles.

Forthcoming issues of Point Lookout

Coming October 5: Downscoping Under Pressure: I

When projects overrun their budgets and/or schedules, we sometimes "downscope" to save time and money. The tactic can succeed — and fail. Three common anti-patterns involve politics, the sunk cost effect, and cognitive biases that distort estimates. Available here and by RSS on October 5.

And on October 12: Downscoping Under Pressure: II

We sometimes "downscope" projects to bring them back on budget and schedule when they're headed for overruns. Downscoping doesn't always work. Cognitive biases like the sunk cost effect and confirmation bias can distort decisions about how to downscope. Available here and by RSS on October 12.

Coaching services

I offer email and telephone coaching at both corporate and individual rates. Contact Rick for details at rbrendbTtLLSVlUPPCNkAner@ChacthFxWKdRwnLylOCDoCanyon.com or (650) 787-6475, or toll-free in the continental US at (866) 378-5470.

Get the ebook!

Past issues of Point Lookout are available in six ebooks:

• Get 2001-2 in Geese Don't Land on Twigs (PDF, )
• Get 2003-4 in Why Dogs Wag (PDF, )
• Get 2005-6 in Loopy Things We Do (PDF, )
• Get 2007-8 in Things We Believe That Maybe Aren't So True (PDF, )
• Get 2009-10 in The Questions Not Asked (PDF, )
• Get all of the first twelve years (2001-2012) in The Collected Issues of Point Lookout (PDF, )

Are you a writer, editor or publisher on deadline? Are you looking for an article that will get people talking and get compliments flying your way? You can have 500-1000 words in your inbox in one hour. License any article from this Web site. More info