Now that you have a plan, the next steps include implementing the changes. This is where a good project manager shines, as they must really understand the costs and risks associated with the plan. Some project managers will prefer to use forecasting software as opposed to estimating software, since they have more control over waste that way. Your decisions also must include whether implementation is best carried out in Kaikaku fashion (fast, radical change) or at a Kaizen rate (constant, gradual change).
In some instances, it is beneficial to host rapid Value Stream Mapping events. These can take anywhere one day to an entire week depending on the intensity of the improvement being initiated and the levels of integration that are included. Team members will normally leave the meeting with a list of action items to help start the new processes, and they can each take a chunk of time to execute them.