RFPRequest for Proposal — a formal bidding process where suppliers compete for your business, like getting quotes from contractors.
IncumbentThe current supplier you're already working with — the "default" choice at renewal time.
Market TestChecking what other suppliers would charge, like getting multiple quotes before buying a car instead of just renewing your lease.
Switching CostWhat it costs to change suppliers: retraining, new systems, certification, and dual-running during transition.
Addressable SpendThe portion of your budget you can actually put out to bid — world-class teams source 60% of it vs. 44% for average teams.
BenchmarksThird-party price data and cost models that tell you whether a supplier's quote is fair — without them, you're negotiating blind.