This surface turns vendor overlap, renewal timing, hidden dependencies, migration blockers, and modeled savings into one executive view: replacement score, switching-risk map, savings narrative packets, and board-ready memo language.
Prioritize overlap-tax removals first, then reissue blocked replacement cases with cleaner dependency maps before promising savings to the board.
Ready exits, overlap-tax removals, and staged savings now sit in one executive view instead of disconnected procurement debates.
The highest-value exits still need cleaner migration proof, so the board memo has to sequence reality before ambition.