To ensure Supplier Y improves its KPI scores, the supply manager should require the supplier to submit a detailed written plan outlining specific steps and strategies for improvement. This plan should include measurable targets and timelines for each KPI. By closely monitoring the supplier's progress against this plan, the supply manager can ensure accountability and provide support where needed, fostering a continuous improvement culture.
References
* Supplier Evaluation and Performance Excellence: A Guide to Meaningful Metrics and Successful Results by Sherry Gordon
* "Key Performance Indicators (KPIs) in Supply Chain Management" - Supply Chain Council