Based on the work breakdown structure (WBS) for a project with the requirement to lower a restaurant's food costs, preliminary work performance data indicate that the initial target has not been achieved. The project manager is reviewing suggestions to identify suitable actions for closing the gap. Once the desired scope change has been selected, the project manager will update the project plan.

Rejecting the essential scope change would not address the underlying issue of unmet targets. While avoiding penalties might seem prudent, it fails to adapt the project to its reality and could lead to further cost overruns and stakeholder dissatisfaction. A static plan would also prevent the project from achieving its goals.

While contingency allowances are meant to cover unforeseen costs, simply accepting variances without a formal update to the baselines does not align with best practices in project management. Variances must be documented and managed through the change control process to ensure clarity and accountability.

Drawing upon managerial reserves might provide immediate financial relief but does not address the need to formally update project baselines. Using reserves without an updated scope baseline can lead to misalignment of project objectives and performance measurement.