Marking stage dependent fields as required on the Opportunity page layout is a good solution to improve efficiency and data quality, as it ensures that users enter the necessary information for each stage of the sales process. Adding a Path component with fields and instructions aligning to stages on the Opportunity is another good solution to improve efficiency and collaboration, as it provides guidance and best practices for users to move the Opportunity along the sales cycle. Using two Tabs components to separate record information from activities may not be an optimal solution, as it may reduce the visibility and accessibility of important data. Setting up an approval process requiring manager consent at each stage of the Opportunity may not be a feasible solution, as it may introduce unnecessary delays and complexity in the sales process