Longstreet planned an attack as early as November 20 .
He delayed , waiting for reinforcements under Brig. Gen. Bushrod Johnson ( 3,500 men ) and the cavalry brigade of Grumble Jones .
Longstreet planned an attack as early as November 20 , but he delayed , waiting for reinforcements under Brig. Gen. Bushrod Johnson ( 3,500 men ) and the cavalry brigade of Grumble Jones .