Involve with a larger think tank at client side and at much early stage of their strategic planning or pre-planning. Get visibility of all initiatives across all the departments and now the $ value opportunity (existing and new)

While writing ROI, its very likely that you missed out the topline impact on clients revenues due to their own shift in revenues and similar shift in clients's clients revenue sources which can be enabled by your offering.

Talk to our analyst to know what unknowns are impacting your clients and your client's clients and find unknown opportunities which can be enabled by your offerings proactively.