In conclusion, the decision between a fixed$-$order quantity $($FOQ$)$ and a fixed$-$time period $($FTP$)$ model in inventory management depends on several factors unique to the operational, financial, and strategic contexts of the organization. By carefully considering the trade$-$off between ordering costs and holding costs, demand variability, lead time, operational flexibility, and financial considerations, plant managers can make informed decisions that optimize inventory management and support the overall goals of the organization. Final Answer: Plant managers should consider factors such as ordering costs vs$.$ holding costs, demand variability, lead time, operational flexibility, and financial considerations when deciding between a fixed$-$order quantity $($FOQ$)$ and a fixed$-$time period $($FTP$)$ model in inventory management.