While we are on the subject of people who did not do well at their respective Military Academies:
Patton:U. S. Grant showed little promise at West Point. Although relatively well educated, he studied little. He stood out in mathematics and horsemanship, which had always been his best subjects, as well as in art. He earned his lowest marks in French. Ulysses graduated 21st out of 39 cadets in his class.
Fleet Admiral William Halsey:Due to deficiencies in mathematics, he had to spend an extra year at West Point, but this deficiency was no detriment to his superb military skills which gained him the cadet adjutancy his final year.
There are many more examples than these three but I thought I would not bore you with the entire list. The act of graduating a school such as Annapolis or West Point sets the person who graduated last in their class above a Princeton or Harvard graduate who finished at the top of theirs. Yes, it is that much harder.William Frederick Halsey, Jr., was born in Elizabeth, New Jersey, on October 30, 1882, the son of the late Captain William F. Halsey, U. S. Navy. As a Navy junior, he made the usual round of schools prior to his appointment to the Naval Academy. President McKinley gave him an appointment in 1900.
While at the Naval Academy he distinguished himself in class committees and athletics, but not in scholarship.
In point of fact I have known a few Harvard grads who were unemployed but i have never met a military academy alum who was hurting for a job.