The roots of the Last Planner® System reach back before the word “Lean” was coined by the International
Motor Vehicle Program and made famous by the book The Machine that Changed the World. Events that
in some way influenced the thinking behind the Last Planner® include the collaborative leadership style of a
military officer in southeast Asia, the priorities of a chicken rancher, and the influence of the Total Quality
Management movement.
Glenn Ballard is credited with the invention of the Last Planner. A principal collaborator in its development
has been Greg Howell. Others, including Mike Casten and Laurie Koskela, contributed to the experiences
informing its development.
Glenn began his career as a pipefitter on an oil and gas project in the Houston ship channel. As his early
career progressed he worked as a construction area engineer on an oil and gas project south of Houston for
a major engineering and construction company. The year was 1979 and the project was failing. A new
project manager for the work, not wanting to experience the fate of his predecessors, brought in a group of
productivity experts which included Greg Howell and Mike Casten. Greg and Mike sought a project team
member to work with them in addressing the problems facing the project. The first candidate, stating he
would rather be tending to his 100,000 head chicken ranch was rejected. Glenn was the next candidate, and
together this team saved the project. Glenn became a manager of productivity improvement for the
company, leading his division to ten percent productivity improvements.
Greg began his career as a Navy Seabee, stationed initially in the Vietnamese Demilitarized Zone and
ultimately responsible for leading a road construction team in northern Thailand. Among his influences was
a commander, who upon gathering a team to plan a project, placed an alabaster bowl in the center of the
table, in which he placed his insignia. He invited others to do the same. The message was clear. Planning is
a collaborative exercise requiring the combined intelligence of everyone on the team. Rank cannot prevent
anyone from speaking their mind and contributing their ideas. And rank does not confer any special level of
knowledge that escapes examination by others on the team.
By 1988 Glenn was identifying the importance of reliable planning. Greg was teaching at the University of
New Mexico. The two had continued to collaborate throughout the years. In 1989 Glenn began lecturing at
the University of California in Berkeley, with a focus on quality and productivity in construction. A few
years later the importance of reliable promising by construction foremen in regards to weekly work plans
was recognized. Weekly work planning, percent plan complete measurements, and variance based learning
formed the foundation of the Last Planner System. 1992 began a period of development beginning with a
coke plant expansion project in Corpus Christi, Texas, and continuing with a 1995 $1.2 billion refinery
expansion project in Venezuela. In the latter project, productivity improved so rapidly that the need for
make ready work became apparent. In the next few years lookahead planning was added to the Last
Planner.
In the early stages of Last Planner development Glenn and Greg met Laurie Koskela, who was a visiting
scholar at Stanford University in 1991 – 1992. Laurie was advocating that the construction industry learn
from the Total Quality Movement changes occurring in the manufacturing industry; a call ignored by
people refusing to see any correlation between production in manufacturing and production in construction.
It was near this time that the three men read The Machine that Changed the World, by Jim Womack, Dan
Jones, and Dan Roos – a book that began the popularization of the word “lean.” The book supported the
importance they placed on the need to do things a different way. The connection between the lean concepts
described by the book, the approach to work of the Last Planner, and the ideas advocated by Laurie resulted
in the formation of the International Group for Lean Construction in 1993. Later, in 1997, Glenn and Greg
co-founded the Lean Construction Institute.
Last Planner continued to evolve. In the course of work in the late 1990s phase planning through the use of
pull planning techniques was added along with milestone planning to complete the functionality of the Last
Planner System as practiced today.
For more history of the Last Planner System, and importantly the events and people that informed its development, please watch our recorded webinar.
25
April 2018
