2. Inadequate Leadership — If the Project Manager lacks essential business/management knowledge, poor decision-making will result.
3. People issues - this can lead to unresolved disagreements, which can be detrimental to the project. To keep everyone on board and in agreement, a Project Manager needs to be an experienced communicator.
4. Ambiguous/Changing Needs - It's critical that project requirements are established clearly and completely from the beginning. Change requests can cause the project to sag and deadlines to be missed.
5. Lifecycle issues - these are frequently caused by a lack of planning or changing requirements. To minimise repeating errors, initial testing approaches should be stringent.