“…22 Finally, several studies addressed a different type of workforce mix consideration: when to 15 Lindsay Daugherty, Laura Werber, Kristy N. Kamarck, Lisa M. Harrington, and James Gazis, Officer Accession Planning: A Manual for Estimating Air Force Officer Degree Requirements, Santa Monica, Calif.: RAND Corporation, TL-196-AF, 2016. 16 Knopp et al, 2016. 17 Robson et al, 2020. 18 Markel et al, 2018. 19 Paul, Porche, andAxelband, 2014;Porche et al, 2017;Hardison et al, 2019.…”