1. The "Option Value" Conservation Law
Every club has an option value representing the future gameweeks where they have >70% implied win probabilities at home against bottom-half opposition. Burning Manchester City or Arsenal against a promoted side in Gameweek 6 yields only a marginal immediate edge (+4% win probability over a mid-tier home favorite), but permanently deprives your sheet of an anchor during tough festive or blank matchweeks.
Tactical Rule: Whenever a Tier 2 home side (e.g., Aston Villa, Brighton, or Newcastle) is playing at home against a lower-third opponent with >65% win probability, deploy them instead of an elite Tier 1 club.