Affirmative strategy: Keep it simple (Occam's Razor)
He should prioritize the version of the affirmative that requires the fewest unusual assumptions: defend measurable benefits of public healthcare where it already exists, use clear causal claims (A causes B), and avoid exotic or highly conditional theories unless they buy him decisive offense.
Three contention blocks to draft before next session
Lock in three independent contentions David can run from the affirmative: (1) coverage expansion reduces preventable mortality, with two empirical studies as warrants; (2) administrative simplification lowers per-capita cost without sacrificing access; (3) physician retention improves under stable single-payer funding. Each block should fit on a single page, with two cards of evidence and a one-line impact framing.
Comments
David is a very capable researcher with a lot of ideas. His strength is creativity of arguments and adaptation to a lay audience. Coaches can help him focus his efforts on organizing his ideas and constructing them into complete files that can win debates.