Many times, the project plan created by the vendor’s project managers is not complete in scope. It does not address all of the tasks required of all the involved parties.

When I work on a project that involves replacement of an existing telephony system, the equipment vendor typically assigns a project manager to the installation. In most proposals, there is a section that covers the installation process and how the vendor's project manager will ensure that the system is installed successfully. Rainbows and butterflies will abound.

What They Don't Tell You
In many cases, the vendor's project manager is only responsible for the vendor's portion of the project (typically, the installation of the telephony equipment and its programming). Most system replacement projects have additional components, such as:

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