Complex sentence: Pitillo became involved early on in the project, hired in part, because of her collaboration with the Rogow/Byrum team on the "Middle Ages" project, and read with other actors who were auditioning for the lead.
Split into simpler sentences: Pitillo became involved early on in the project, in part because of her collaboration with the Rogow/Byrum team on the "Middle Ages" project. She read with other actors who were auditioning for the lead.