The postseason is a different game than the regular season. With more time to scout and design team-specific gameplans, defenses can scheme away certain aspects of an offense. The Toronto Raptors scheme has taken away Nikola Vucevic.
Vucevic has been the offensive hub for the Orlando Magic all season. He averaged 20 points, 12 rebounds, and four assists per game during the regular season. When he was on the court, the Magic had an above-average offense. When he sat, they were the worst offense in the NBA.
Stopping Vuc has been the Raptors first priority on defense so far this series.