There was much alarm at the losses Gough had suffered. His tactics were severely criticised. Military experts in Britain described him as a "superannuated general who could not mount his horse without assistance" and he was replaced by General Charles James Napier, who would require several weeks to arrive from England. Some junior officers reckoned that the true cause of the setback lay lower down the ranks. Promotion in both the British and Bengal armies came slowly, and by the time officers were appointed to command regiments and brigades, they were too old, and worn out by harsh climate and disease. At Chillianwala, several senior officers had proved unable to command their units effectively.