What does the sub-optimization mean?

Sub-optimization refers to a situation where a part of a system is optimized at the expense of the overall system's performance. This often occurs when individual components or teams focus solely on their own goals without considering the broader objectives, leading to inefficiencies and reduced effectiveness. In business, this can manifest when departments prioritize their specific targets, potentially hindering collaboration and overall success. Ultimately, sub-optimization can result in a failure to achieve the best possible outcomes for the entire organization.