5 Biggest overreactions to week 1 of the Mavericks' season

2. Giving Josh Green an extension was a mistake

On the contract extension deadline, Dallas decided to offer swingman Josh Green a new contract as his rookie pact was set to expire. The Mavericks signed Green to a three-year $41 million extension to keep him in Dallas.

After a promising season a year ago, it appeared Green was on the verge of a breakout campaign. He had just averaged 9.1 points, 3.0 rebounds, and 1.7 assists per game while shooting an astounding 53.7 percent from the floor and 40.2 percent from three.

However, this season has been a different story. He's averaging fewer points and rebounds. And, his efficiency has dipped, as Green is shooting 40.7 percent from the field and 35.7 percent from 3-point range.

Furthermore, Green has yet to seize the starting spot. Derrick Jones Jr. has started every game on the wing, while Green has only started in Kyrie Irving's absence.

The Australian guard's game hasn't looked much different from a season ago. He still flies around the floor and exhibits fantastic athleticism. Yet, he's not confident on offense and even looks lost at times. Green is at his best when playing with confidence, and without confidence, his game looks completely different.

On a more optimistic note, Green is still a young player and continuing to find his groove. He's nearly clearing 30 minutes per contest and has proven to be a staple for the franchise going forward. It's only a matter of time before Green starts shooting the ball more confidently and playing to his strengths more often.