The 2011 college basketball championship between Butler and UConn was a slog, seeing some of the worst offenses of the season. The game took place in Houston’s NRG Stadium, and critics say that the dome’s unsettling background ruined players’ depth perception. Games in similar domes aren’t as challenging, and analysts say the key difference is the large curtain hung behind both baskets. Since 2011, close to 20 college basketball games have been played in the offending arena, with the NCAA making no adjustments. Teams that rely on their shooters may simply be out of luck at certain venues.