Reactive management is most certainly not a bad thing if it required. Hopefully, it will not be required as a good PM should be able to account for any delays or foreseeable issues. Usually reactive management is characterized by a lack of proper planning. Reactive management is also referred to as “firefighting”; which means that the manager has to put out the fire. The fire in this concept is whatever issue has risen due to improper planning. This could due to a task not be fulfilled or possibly even a setback due a failure of product. Personally, I believe it is better to be proactive than reactive in such that possible issues are accounted for beforehand. Hindsight of course is always 20/20, and a human cannot possibly account for everything so issues will always arise. However, one should look at big picture problems that could cause large amounts of time to be wasted from issues.