Walt and his studio were running in overdrive, there were worlds to conquer in animation.
Milt Kahl got his big break during the production of the film, he designed the title character and became a supervising animator.
Over the years Milt got criticized by his colleagues for not being emotionally enough involved in his work, and that great draughtsmanship became his main tool to communicate.
Take a look at these rough drawings featuring Geppetto's and Pinocchio's reunion.