Prior and Wilson called Haig's instructions of 2 August, for "careful and methodical" attacks, "pushed forward without delay" so ambiguous as to be incomprehensible and Rawlinson incapable of implementing them. Sheffield wrote that criticism of directives from Haig, underestimated the difficulty in balancing tactical, operational and strategic demands. Line straightening attacks were costly but were better than imposing complicated manoeuvres on the infantry. After the failure on 8 August, Haig ordered Rawlinson to plan an attack on a wide front, combined with the French. On 11 August, Haig and Joffre agreed a joint attack by the French Sixth and British Fourth armies on Maurepas and Guillemont. The attack was delayed by rain and supply difficulties, then French co-operation was cancelled again. On 18 August, the 3rd Division was "shattered" and the only success was obtained by the 24th Division, behind a creeping barrage; the British returned to smaller attacks. On 24 August, Haig criticised Rawlinson for failing to supervise planning and for attacking on narrow fronts with insufficient forces. Sheffield blamed Rawlinson who had "abdicated responsibility" and called Haig's directive a "Boy's Own" guide to command.