The Cavs' four best players played in just 28 games together last season. This season, they are healthy and have logged more games together. The team's offense is clicking, led by Darius Garland, Donovan Mitchell and Evan Mobley. The defense has also improved, with the Cavs switching more than 38% of opponents' on-ball screens. The Cavs are a legitimate title contender, but they will need to continue to play well down the stretch to reach 70 wins.