Preseason projections highlight a tight race for the top fantasy D/ST unit in 2026-27, with units like the Texans, Broncos, Seahawks, Rams, and Steelers frequently cited among early expert consensus rankings due to strong rosters, pass-rush depth, and favorable early schedules. High year-to-year volatility in fantasy scoring—driven by sacks, turnovers, defensive touchdowns, and points allowed—prevents any single defense from separating, as roster changes, injuries, and scheme adjustments during training camp remain fluid. Traders reflect this uncertainty through evenly distributed implied probabilities across dozens of teams, underscoring how situational factors such as offensive line strength faced, weather in outdoor venues, and bye-week timing could shift outcomes once regular-season games begin.