Resizing the work is one method for reducing queue length in SAFe. Queue length is the number of work items waiting to be processed in a system. Reducing queue length can improve flow, reduce cycle time, and increase throughput. Resizing the work means breaking down large work items into smaller ones that can be completed faster and with less variability. Smaller work items also reduce the risk of rework, defects, and delays. Resizing the work can be done at any level of SAFe, from portfolio epics to team stories. SAFe provides several techniques for resizing the work, such as Weighted Shortest Job First (WSJF), Minimum Marketable Features (MMFs), Minimum Viable Products (MVPs), and Spikes1. References: Principle #6 - Visualize and Limit WIP, Reduce Batch Sizes, and Manage Queue Lengths - Scaled Agile Framework