Who to Blame?

Many arguments have ensued since 1863 as to who is mostly to blame for the Confederate Loss at Gettysburg. Here are the usual suspects:

ROBERT E. LEE. He was overconfident and reckless. He let being "on a roll" go to his head. He even admitted that it "was all my fault"  because he thought his men "invincible." It is generally accepted that Lee was suffering from some illness during the battle that caused him to be irritable. Does Lee's confession that it was "all my fault" diminish or improve his quality as a leader?

THE MEN WHO ACCIDENTALLY KILLED STONEWALL JACKSON. After the war, Lee said, "If General Jackson were with me at Gettysburg, we would have won the war." There is historical consensus that Jackson would have seized the high ground on the first day of the battle.

GENERAL EWELL. Stonewall Jackson's replacement who failed to follow Lee's instruction to take the hills on day one.

GENERAL JEB STUART. The commander of the CSA cavalry who was 48 hours tardy for the battle.

GENERAL LONGSTREET. The leader of the final charge who was quite unenthusiastic about it, which may have diminished the quality of his effort. After the war, Longstreet disavowed his Confederate ties and joined President Grant's administration.

"I THINK THE YANKEES HAD SOMETHING TO DO WITH IT." General Pickett's answer when he was asked who to blame. In other words, the CSA didn't fail; it's just that the Union Army was superior.