The Project Blitz playbook nearly quadrupled in length within three years

Evidence

Although the initiative was started in 2015, it is evolving rapidly, capitalizing on its previous successes and incorporating lessons learned from its losses. In 2016 the Project Blitz playbook was 40 pages long; in 2017 it had grown to 116 pages. By 2018–2019 it had swelled to 148 pages. — Katherine Stewart, The Power Worshippers, 603