Irving's leadership and PG development were cut short by Lebron coming to Cleveland. He played second or third fiddle to one of the greatest basketball players in the history of the game all in his developmental years. It had to have an effect on him as a leader.
Also, give Kyrie a little time to adjust to playing next to two starting players that are 19 and 20 years old that were thrust into the starting line-up due to the injuries of Hayward, and Morris. Spacing was terrible last night due to this.
The acquisition of Kyrie is a long-term move, he's 25, healthy, very talented, and still growing as a leader.