Cousins signed a one year deal with the back-to-back NBA champions in the summer of 2018.
However, Cousins was still recovering from a torn achilles tendon when he signed and has yet to make his Golden State debut.
The injury, dating back to January 2018, has kept him out of practice and games for nearly a year.
Kerr was complimentary of the star, and declared that he didn’t have another player like him in the roster.
Cousins, 28, is a four-time NBA All-Star, and a 2016 Olympic gold medalist.
During his career, he has played as a center, and is expected to be brought in to shore up the Warriors defense.
After a lightning fast start, the reigning champions had a poor spell of form, and are now 27-14 and second in the NBA Western Conference.
And Kerr believes that the introduction of Cousins will be the perfect kick-start to the second half of the season.
“He’ll start,” Kerr confirmed.
“I’ll start him. After that, everything’s on the table.
“We have to figure out what the rotations will look like, how many minutes he can play.
“We’ll have to play around with the minutes, the combinations, the sets.
“We haven’t had a player like him here before.
“I think DeMarcus the last couple weeks has had a smile on his face.
“I think the impending return is finally — after all these months of rehab, almost a year — I think he’s pretty happy that it’s finally coming up.”
Cousins revealed that he is relieved to be returning from the injury.
After a year out, he explained that he had been working hard with staff to accelerate his recovery.
“It’s a relief,” he told ESPN.
“It’s been a long year for me, a lot of ups and downs.
“But the finish line is ahead, and I’m extremely excited to be back on the floor.”