"It's All In Here" is one of several draft songs from A Chorus Line that did not make it into the final show. It was situated initially at the beginning and appears to be a rough for "I Hope It Get It/Who Am I Anyway?" The full song was performed in public for the first time at the Public Theater's 2014 Gala celebrating the 40th anniversary of A Chorus Line.
http://queeniewasablonde.tumblr.com/post/94562485552/its-all-in-here-the-original-never-used
It's All in Here (Bonus Track)