Most system implementations start with a business case built around efficiency gains, better data, and faster decisions. The technology is selected carefully. The implementation plan is thorough. The go-live date is set.
And then, somewhere between the project closing and the expected results arriving, things stall.
The reports exist but nobody trusts them. The new process is technically live but people have found workarounds. The system is doing what it was designed to do, but the organisation is not doing what it needs to do to benefit from it.
This is not a technology failure. It is a change management failure. And it is far more common than most post-implementation reviews are willing to admit.
of major transformation programmes fail to achieve their original goals. The technology rarely causes the problem. (McKinsey & Company)
The Gap Between Go-Live and Value
There is a moment in almost every implementation where the project team declares success and hands over to the business. The system is running. Training has been delivered. The documentation is written. From a project perspective, the job is done.
But value is not created at go-live. It is created in the months and years that follow, as people use the system well, build confidence in the outputs, and change the way they make decisions. If the groundwork for that has not been laid, go-live is just the beginning of a different kind of problem.
"Value is not created at go-live. It is created in the months that follow, as people change the way they work."
The organisations that get the most from their planning systems are not always the ones with the most sophisticated technology. They are the ones that treated the human side of the implementation with the same rigour as the technical side.
of projects with excellent change management meet or exceed their objectives, compared to just 13% with poor change management. (Prosci)
What Change Management Actually Means in Practice
Change management is often described as stakeholder communication and training. Both matter. But they are not sufficient on their own.
Effective change management in a planning system implementation means:
- Understanding which roles will be most affected, and how their day-to-day work will change
- Involving those people early, before design decisions are made, not after
- Building confidence in the new outputs, which often means running the old and new processes in parallel for a period
- Addressing resistance directly and without judgement, because resistance usually signals a legitimate concern
- Making sure line managers are equipped to support their teams through the transition, not just informed that it is happening
- Setting realistic expectations about the learning curve, so early struggles do not get misread as system failures
None of this is complicated in principle. But all of it takes time, attention, and genuine commitment from leadership. That is where most organisations fall short.
The Role of Leadership
The single biggest predictor of a successful implementation is visible, sustained leadership support. Not an email from the CEO at launch. Not a slot on the all-hands agenda. Real, ongoing commitment from the people who set priorities and model behaviours.
"The single biggest predictor of a successful implementation is visible, sustained leadership support."
When leaders continue to ask for data from the old system, teams notice. When they skip the new planning process because it feels unfamiliar, teams follow. When they treat teething problems as evidence the system was a mistake, the organisation hears that too.
Conversely, when leaders use the new system themselves, ask questions that only the new outputs can answer, and treat the transition period as a normal part of implementation rather than a crisis, it changes how the whole organisation responds.
Change management is not a project workstream. It is a leadership responsibility.
greater return on investment for organisations that apply structured change management versus those that do not. (Prosci)
When to Start
The most common mistake is treating change management as something that happens after the system is built. By that point, design decisions have been made without end-user input, resistance has had time to build, and the window for building genuine buy-in has narrowed significantly.
Change management should begin at the point of decision. When the business decides to implement a new planning system, the conversation about people, process, and capability should start at the same time as the conversation about technology.
This does not mean the change programme needs to be fully scoped from day one. But it does mean asking, from the beginning: who will be affected by this, how will we bring them with us, and what will success look like from a people perspective, not just a technical one?
What Good Looks Like
Organisations that navigate system implementations well tend to share a few common characteristics. They invest in understanding the current state before designing the future state. They create genuine space for people to raise concerns without those concerns being dismissed. They measure adoption and capability alongside system performance metrics. And they accept that the transition will take longer than the project plan suggests, and plan accordingly.
They also tend to work with implementation partners who understand that their job does not end at go-live. Getting the system live is the starting point. Helping the organisation get value from it is the real work.
Grange Perspective
At Grange, we work alongside planning teams throughout implementation and beyond. We have seen what happens when change management is treated as an afterthought, and we have seen the difference it makes when it is built into the programme from the start.
Our experience spans Kinaxis Maestro™ implementations and broader planning transformation programmes. We help organisations not just implement new systems, but build the capability and confidence to use them well.
If you are planning an implementation, or struggling to get value from one that is already live, we would be glad to talk it through. Get in touch.
McKinsey & Company: Delivering large-scale IT projects on time, on budget, and on value.
Prosci: Best Practices in Change Management, 2023 Edition.
Gartner: Supply Chain Planning Survey, 2025.