Could Pickett's Charge have succeeded?

Very true. Heth was part of Hill’s Corps. My mistake.

I’ve heard many scholars say that if Ewell had done his job and taken Culps Hill and Cemetery Hill on Day One, that not much would have changed. Gettysburg would have been known as a rather large skirmish and that the major battle would have happened elsewhere after the Union redeployed to more favorable ground.