Le Marchant was responsible for a considerable improvement in the practical abilities of the British army on campaign. His sword exercise undoubtedly augmented the combat capabilities of the British cavalry. The military college produced many able staff officers, collectively known as "Wycombites," who went on to serve in important staff positions in the Peninsular War and the Waterloo Campaign. He also introduced the idea that officers should be formally trained in their duties rather than having to pick up the rudiments of their profession on active service.