Lee's plan for July 2 called for Longstreet to attack the Union's left flank, which would be followed up by Hill's attack on Cemetery Ridge near the center, while Ewell demonstrated on the Union right. Longstreet was not ready to attack as early as Lee envisioned. He received permission from Lee to wait for Brig. Gen. Evander M. Law's brigade (Hood's division) to reach the field before he advanced any of his other brigades; Law marched his men quickly, covering 28 miles in eleven hours, but did not arrive until noon. Three of Longstreet's brigades were still in march column, and some distance from the attack positions they would need to reach. All of Longstreet's divisions were forced to take a long detour while approaching the enemy position, misled by inadequate reconnaissance that failed to identify a completely concealed route.