While at the Marine Corps Schools in 1909, he wrote a prophetic article entitled "Aviation, the Cavalry of the Future". As Commandant, he appointed the Hogaboom Board, named for Major General Hogaboom, the chairman, that began the USMC's development of vertical envelopment, the use of helicopters for air assault. During his early years as a second lieutenant, General Vandegrift was also very nearly dismissed from the Marine Corps due to disciplinary infractions and negative evaluations. In his first Marine Corps evaluation, dated June 30, 1909, Vandegrift received an overall rating of "Not Good" with these remarks from the Commander of the Marine Officers School.