How Many Projects Should Be Assigned or Handled by Project Manager at a Time?

Project Management is not new. It is as old as we are.depends on the complexity of the project? Why?
The projects such as the great pyramid of Giza, aLet's discuss now.
monumental structure and Architecture structuresIt's very difficult to define the term complexity. Let us
during Greek & Roman era shows that people werego back to the original Latin word complexus, which
using project management many years ago. Theysignifies "entwined", "twisted together". This may be
might not use the latest and greatest tools we haveinterpreted in the following way: in order to have a
today, but that shows that they have used some sortcomplex you need two or more components, which
of mechanism to complete their projects.are joined in such a way that it is difficult to separate
Organizations regardless of their size perform projects.them. Project complexity can be classified into two
These projects are planned, executed and controlledtypes such as Technical complexity and Management
to realize the business objectives. This might be tocomplexity. An example of technical complexity is the
develop a new product or new service or to developsituation of being unable to reuse existing code when
a new business or to meet Legal needs or even todeveloping (or adding) new functionalities when
address social problems. In simple terms, we candeveloping IT projects. Similarly, an example to
classify projects into two categories. One is short termmanagement complexity would be a situation where
projects and other is long term projects. In general,the objectives of implementing the project are not
short term projects require few resources and mostclear, high customer impact can also be treated as a
likely get over within a year. The company might getbusiness complexity.
immediate cost saving by implementing this type ofMore complexity brings more uncertainty. More
projects. One example would be an IT project whichuncertainty means that more planning, co-ordination
would be launched to reduce automation errors 5and more communication are needed to complete the
percent within a calendar year. On the other hand, longproject on time under a stipulated budget. A general
term projects, typically take more than a year; they willrule of thumb is that managers spend 80% to 90% of
require more resources and create more cost savingtheir time to communicate. Hence, I would say that the
over a period of time. An example would benumber of projects a manager can handle depends on
implementing a business intelligence system to predictthe complexity of the project. Even though
customer buying pattern.organization structures, experience of the manager
Now let's go back to your question? How manyplay a role when allocating projects. Project complexity
projects can a manager handle? Does it depend onis the most important factor that needs to be
the duration of the projects? Or does it depend on theconsidered when assigning more projects to a project
experience of a project manager or does it depend onmanager.
the organizational structure? I would say it mostly