Answer
Lack of preparedness was the primary criticism leveled against Moshe Dayan, the Israeli Defense Minister during the Yom Kippur War of 1973. Despite intelligence reports suggesting an impending attack by Egypt and Syria, Dayan dismissed their significance, leading to an initial state of unpreparedness and surprise when the war broke out. The subsequent investigation by the Agranat Commission found Dayan responsible for this oversight, resulting in his resignation.