I must disagree... Pickett's order were to strike the center of the Union line on Cemetary Ridge, as a soldier he was not afforded any other option. Besides, Lee had failed to succeed on either flank, July 1 and 2.
As he stated to Longstreet when the general argued a frontal assault, "...the enemy is there and that is where I plan to attack him...".
That was General Dwight Eisenhower's considered opinion.