When a company uses a hybrid production method, it has to manage the timing of activating and deactivating capacity. This typically involves costs associated with changing production levels, which include inventory carrying costs and other costs such as new employee training. Training new employees is relevant because adjusting production capacity often means hiring or laying off staff, necessitating investment in training new hires to maintain productivity and quality.
* Strategic sourcing (A) is more related to procurement rather than production capacity.
* Capital tooling (B) is relevant for initial setup but not typically for ongoing adjustments in capacity.
* Fixed plant (D) costs are generally stable and not directly influenced by the timing of capacity changes.
References
* Jacobs, F. R., & Chase, R. B. (2018). Operations and Supply Chain Management. McGraw-Hill Education.
* Stevenson, W. J. (2021). Operations Management. McGraw-Hill Education.

A lean supply chain transformation requires the commitment and active involvement of top management. This commitment ensures that necessary resources are allocated and that there is a strategic alignment with the organization's goals. Top management sets the vision and provides leadership, which is critical for overcoming resistance to change and for fostering a culture that embraces continuous improvement. While external resources (A), social responsibility (C), and positive ROI (D) are beneficial, they are not as fundamental as top management's commitment to the successful implementation and sustainability of lean practices.
References:
* Liker, J. K. (2004). The Toyota Way: 14 Management Principles from the World's Greatest Manufacturer. McGraw-Hill.
* Womack, J. P., Jones, D. T., & Roos, D. (2007). The Machine That Changed the World: The Story of Lean Production. Free Press.

When implementing e-commerce in the supply chain, one of the toughest challenges is ensuring that data can be universally understood and processed by different systems. This includes:
* Data Standardization: Converting data from various vendors and partners into a common format.
* Interoperability: Ensuring different systems can communicate and share data seamlessly.
* Data Accuracy: Maintaining the accuracy and consistency of data across the supply chain.
While getting all vendors to computerize (A), convincing the IT department of the value (C), and explaining the reason for change to customers (D) are significant challenges, translating data into universal standards is often the most complex due to the diverse systems and formats used by various entities in the supply chain.
References
* "E-Commerce Logistics and Fulfillment: Delivering the Goods" by Deborah L. Bayles.
* APICS Dictionary, 16th edition.