The Sunday Question: Gettysburg Misunderstandings

in your opinion, what is the biggest misunderstanding or misperception about the battle of Gettysburg/Gettysburg campaign?

Why all the Fuss About George H. Thomas?

George H. Thomas was one of the five best commanders on the Union side during the American Civil War.  He was extremely competent and skilled.  One could easily make a case for him as one of the top three Union commanders (with Grant and Sherman) and note that on a battlefield proper Thomas surpassed Sherman (as did Sheridan, and probably Meade).  Sherman’s skills did not include being an especially capable battlefield commander.