Air Force officials perceived difficulties for newly commissioned officers in making the transition from the Reserve Officer Training Corps into flying training. Responding to higher headquarters planning, the 3700th Military Training Wing designated and organized the 3700th Pre-Flight Training Group (Officer) on 20 August 1954. It conducted a four-week, 160-hour course, devoted mostly to processing and personnel affairs (46 hours) and to military officer indoctrination (94 hours). The course lasted until the 3700th Pre-Flight Training Group was discontinued on I December 1958.

With discontinuance of the Officer Basic Military Course in March 1955, the few Women in the Air Force gaining direct commissions were assigned thereafter to Officer Military Schools and were given on-the-job training before receiving duty assignments. The Air Force was having difficulty in procuring an adequate number of WAF officers. Of the sources for women officers-direct commissioning, ROTC, and OCS-Air Force leaders decided that the latter had to be made more attractive and productive. Intensive recruiting increased the number of enlisted WAFs seeking commissions. The increase was sufficient for OMS to begin conducting a new WAF Officer Basic Military Course on 4 January 1957. For several years, the WAF OBMC was taught four times per year with enrollments from 20 to 40 new officers each.

Another category of directly commissioned officer began to arrive at Lackland in 1957 to receive military indoctrination. These were lawyers destined for assignment to the Judge Advocate General. A new Officer Basic Military Course (Legal) was implemented on 26 May 1958. By the mid 1960s, the chaplain and legal officer courses were being taught concurrently to integrated classes of newly commissioned clergymen and lawyers.

Air Force leaders modified the Officer Candidate School mission at the beginning of the 1960s. From producing principally administrative and other nonrated officers, the school began to send approximately half of its graduates for preflight training. This was one Air Force response to its increasing difficulty in maintaining an adequate aircrew force.

Officer Training. After a decade and a half, Air Force officials were about to resolve the postwar debate over the "other" commissioning source, after the United States Air Force Academy (USAFA) and the Air Force Reserve Officer Training Corps (AFROTC). In so doing, they brought about a significant change in officer training at Lackland AFB. This new era dawned on I July 1959 (beginning FY 1960) with activation of the Officer Training School, United States Air Force. Within a year, the base would lose its Pre-Flight Training School, followed within three years by its Officer Candidate School.