In most projects, not least in construction, project managers think in terms of the triangle of time, cost, and quality. Moving one angle affects the other angles and the length of the line that joins them.
Subash has a different take on the triangle. He lists the three points as technology, people, and processes and procedures. He describes them as three cogs in a machine, each spinning at a different speed and needing to be brought together to work harmoniously. For example, technology can change rapidly, and on a longer project can change during the lifetime of the project.
So it is important not only to bring the right people in to begin with, but also to treat them with respect and provide the necessary training and support to keep up to date with the technology. Having the right processes and procedures in place acts as the glue to hold the project together.