Four takeaways from Week 2 of the NBA season

Of the seven group stage games, five were decided by five or fewer points, including a thrilling match between the Golden State Warriors and Oklahoma City Thunder that featured a game-winning layup by Stephen Curry.

The most notable change in the viewing experience were the new courts that each game was played on, as the traditional tan hardwood that we've all grown accustomed to was swapped out with a court that featured bright colors and designs. 

The Indiana Pacers, for instance, played on a bright teal court that matched their uniforms and the Chicago Bulls' court had a bright red color that made it hard at times to locate the ball itself.

We'll see if the In-Season Tournament continues to deliver these high-pressure games, but it's clear that the league is committed to making the idea work and so far, it's been a fun viewing experience.

The Boston Celtics might have a superteam

The Celtics have had a great start to their season, posting a 5-0 record and the league's number-one-ranked offense. Jayson Tatum is having an MVP-level season, averaging 30.2 points, 9.6 rebounds and 3.4 assists, and newly acquired players Jrue Holiday and Kristaps Porzingis have seamlessly fit into this team.

The team's +18.4 average margin of victory is six points higher than the second-ranked Philadelphia 76ers, and although this statistic might have been buoyed by their 155-104 domination of the Indiana Pacers on Nov. 1, it is still an impressive figure nonetheless.

Their starting lineup of Tatum, Holiday, Porzingis, Jaylen Brown and Derrick White provides a lethal combination of shooting, defense, size and athleticism that has so far been unmatched by the rest of the league. 

The Milwaukee Bucks have a serious problem with their Defense

The Bucks have had a rough start to a season full of lofty expectations following their blockbuster trade for Damian Lillard. The team currently has a 3-2 record and ranks 11th in offense and a pitiful 27th in defense despite the fact that they have two First Team All-Defense members in Giannis Antetokounmpo and Brook Lopez. 

The drop in defensive efficiency was to be expected with the loss of Holiday, but not to this degree. Their 130-111 loss to the Toronto Raptors on Nov. 2 was a microcosm of this turbulent start, as the Raptors entered that game as one of the worst offenses in the league and easily outclassed this Bucks team. 

Although Lillard has never been known for his defensive abilities, the problems go beyond him. Khris Middleton was expected to step up on the defensive end in the wake of Holiday's absence, but the three-time All-Star has been on a minutes limit while recovering from offseason knee surgery, per Shams Charania and Eric Nehm of The Athletic.

Lillard and Antetokounmpo just haven't been on the same page and have taken more of a your-turn, my-turn approach to the offense, rather than establishing any semblance of a two-man game. 

The Bucks bounced back on Friday with a 110-105 win against the New York Knicks, but if this team wants any hope of being a real postseason threat, it has to improve on the defensive end and work on the chemistry between Lillard and Antetokounmpo. 

The potential is there, all that's needed is consistency for this team to look like this every night.

Are the Memphis Grizzlies in trouble?

With a 1-6 record, the Grizzlies are currently in last place in the Western Conference. For a team that finished last season as the No. 2 seed with a 51-31 record, this start to the season has been shocking. The Grizzlies currently have the 30th-ranked offense and are second-to-last in net rating.

You know things are bad when this is the reaction to getting your first victory of the season.

The team is currently without its franchise player, Ja Morant, who is serving a 25-game suspension, and defensive centerpiece Steven Adams, who was ruled out for the season weeks before its start following surgery on his right knee. Adams, who is perhaps the league's best offensive rebounder, was a crucial part of this Grizzlies team and his absence, along with Morant's, is a huge reason for the team's lack of success.

Desmond Bane, who signed a five-year, $207 million max extension in the offseason, has tried his best keep the Grizzlies afloat, but the absence of Morant and Adams is simply too much to overcome. Marcus Smart was brought in to hold down the fort during Morant's suspension and shift to a secondary ball-handling role upon his return, but the former Defensive Player of the Year has struggled, averaging only 14.4 points and 5.5 assists while shooting 30 percent from three.

Time is running out for the Grizzlies, and it's not inconceivable for the team to be out of the playoff hunt by the time Morant returns.