text: what is the pros/ cons for clean sheet design and systematic design in the term of improving business process?   clean sheet usually refers to that starting of a project or activity from scratch with nothing currently in existence.  systematic design usually refers to the rework of something that currently exists into something else using any number of tools or methods to study, design, deploy and implement the changes.    so, using these definitions to answer your question, some of the items to consider are:  * clean sheet pros   - get to fix what is wrong!  usa culture tends to like the lone ranger mentality – or is a throw away society.  - create something new.  - looks new and clean (at least initially)  - excitement of something new.  * clean sheet cons  - need to look at any legal requirements that may not have impacted an existing organization.  - may not learn from the past or from mistakes that have been previously made.  - may not have expertise in all areas that will be needed.  easy to miss something important.  * systematic design pros  - build on what has been learned before.  - usually appears cheaper on the surface, however, tens to fail to live up the promise once the changes start to occur.  - get to fix what is wrong!  usa culture tends to like the lone ranger mentality – or is a throw away society. - work with familiar surroundings and just modify what is there.  * systematic design cons  - if anything is wrong with the current structure or organization, then legal consequences may result for the management team (i.e. if there is any hazardous waste found on the property, top managers can go to jail).  - work with familiar surroundings and just modify what is there.  - changing the metal attitudes or culture of the organization can be very hard and time consuming.  - is it that people do not like change, or that people do not like forced change!   one of many examples that you could look at this why a management team of a manufacturing organization chooses to either build a new plant in an area where there has never been a manufacturing site before (clean sheet – sometimes called green site) versus the remodeling of an existing plant to make some product.  you can search on various web sites to see how some companies have approach this concept.  while some will rebuild existing structures, others may want to set up a entirely new facility in a new area that has not had manufacturing before.   other areas that you can look for information on this question include: six sigma, lean manufacturing, toyota production system (tpd), ford production system (fpd), kaizen, changing culture or behavior topics or instruction system design within the training community.   good luck