The Boston Celtics looked solid in the first half of Game 1 against the Brooklyn Nets, but they lost total control in the second half and got blown out. Kevin Durant, James Harden, and Kyrie Irving provided the energy the Nets needed to secure the win, combining for 82 points in a 104-93 win.

While the Celtics got off to a good start, they struggled in a few key areas in Game 1. Against a mediocre Nets defense, Boston really scuffled shooting the ball, especially in the second half. The Celtics only managed 40 points over the final two quarters.

Boston also got beat in the rebounding department 50-40 and gave up 29 attempts at the foul line. The Nets didn't shoot well and only made eight 3-pointers, but they were able to make up for that by making 26 free throws.

Here are three adjustments the Celtics must make to have a chance against the Nets in Game 2 and beyond.

1. Increase the field goal percentage

The Celtics shot just 31-of-84 (36.9%) from the field on Saturday night. That's just not going to cut it in the playoffs. Boston struggled to find open shots and struggled to knock down the ones it got. The Celtics must find a way to score more efficiently, otherwise, their postseason will be over very quickly.

Jason Tatum got off to a great start, but he wound up shooting just 6-of-20 from the field and 1-of-4 from 3. Tatum did still score 22 points because of free throws, but this wasn't a good night for him.

Look for Brad Stevens to draw up some plays to get Tatum better looks. Kemba Walker also needs to be better, as he went just 5-of-16 from the field. Evan Fournier was 3-of-10.

Even without Jaylen Brown, the Celtics should be able to score more against a Nets defense that isn't all that impressive.

2. Improve the rebounding

As mentioned, the Celtics were outrebounded by 10. They did have 11 offensive rebounds, with Robert Williams and Tristan Thompson combining for 10 of them, but 11 offensive boards isn't all that many given Boston missed over 50 shots.

Furthermore, the Nets had 14 offensive rebounds of their own despite fewer missed shots. This gave them extra opportunities that the Celtics can't afford to give them. Getting aggressive and fighting for the ball should be a priority in Game 2, as maintaining possession is the best way to defeat Brooklyn. Simply put, Boston must be better on the glass.

3. Decrease the fouls

There were a ton of fouls on both teams in this one. The Nets actually racked up more fouls than the Celtics (22-18), but Brooklyn attempted three more free throws and made six more. Fouling the Nets is bad news when they have a plethora of talented players who can easily cash in from the charity stripe.

This is an especially tough adjustment to make given Brooklyn's talent. They have a bunch of guys who can attack the rim and draw fouls, with James Harden being one of the best at it in the NBA. Boston has to find a balance between aggressive defense while not fouling. This is a task substantially easier said than done, but it's something the Celtics must prioritize.