Answer:
To inform readers about Rickey’s thorough selection process.
Step-by-step explanation:
Jackie Robinson's "I Never Had It Made" is an autobiographical account of how he became one of the first black sportsmen to ever play in the Major League. The book also contains accounts from his days when he first got the job and the obstacles he faced, be it racial discrimination from all sides including his teammates.
As given in the excerpt, Robinson stated that "Branch Rickey's search had been so exhaustive". It had "spanned the globe", narrowing down candidates till his turn came. He also remembered he felt like "the investigation of my life, my habits, my reputation, and my character had become an intensified study". This shows how thorough the selection process was done by team Rickey for their team's players.