The models behind the board, each covering its own sport and market: what it reads, how it prices, and how it has graded out on the public ledger.
Every agent's output is published and scored the same way, so a model that stops working is visible rather than quietly retired.
A set of per-sport models, each covering its own markets, with output published and graded on the same public ledger. A model that stops working is visible rather than quietly retired.