This summer, Allonzo Trier rented a house in Los Angeles with Stanley Johnson and went to work on his game for next season. He had a surprising debut campaign in New York, signing a two-year contract in December after making the team as an undrafted free agent. He averaged 10.9 points, eighth-best in his class, and played more minutes than all but 14 other rookies.



But one good year doesn’t make a career. And for the Knicks, coming off a 17-win season, they’ll need improvement all across the roster. Trier, 23, has plenty to room to grow.



The summer between Year 1 to Year 2 in the NBA can come with significant improvement for some players. It is the time when young players take the lesson learned in their rookie years, when they stumble, tumble, and slip their way through 82 games for the first time, and apply them for a year when they are no longer the least experienced players in the league. To get a gauge of what could be expected from the Knicks’...