A proactive approach to NetSuite security should include:
Define segregation of duties policies
Design Roles leveraging a tool such as Roles Manager that are free from segregation of duties conflicts
Ensure roles are segregation of duties conflict-free before they get assigned to users
Go through User Acceptance Training before go-live
Taking a proactive approach to NetSuite security early on in the project and using SafePaaS platform will allow organisations to reduce risk, and ultimately save both money and time.