You guys remember last year in the playoffs when almost every series and game, we were just swarming the opposing star players and playing exceptional defense. Guys were moving all around, combating everything in-play (rebounds, misses), and forcing guys to make decisions through the swarming (often leading to bad shots or turnovers).
I see absolutely none of that now. It's sometimes just double-teaming but not being physical with it and leaving guys wide open, or a lot of drop coverage which never works nowadays. Smart has also regressed from being a DPOY-caliber player.