It is interesting to see Booker's development. He isn't everything immediately. He faces new challenges in the process, struggles immediately, and then eventually adapts. He is growing before our eyes.
1. Learn to play in the NBA without jitters. Check.
2. Learn to fit into team play and defer to team leaders while playing efficiently. Check.
3. Learn to be the scoring leader on the court, putting up shots and being the first option. Check.
4. Learn to have an impact when opposing teams are keying on just you, with very little additional offensive help. Starting to check with this one.
Each stage has taken him some time.
There are a few more to go.
5. Learn to be effective on defense as well as offense.
6. Learn to make everyone around you better.