MK Ran Cohen had strong criticism today of Prime Minister Sharon: \"Instead of admitting that there had been a mess-up,\" Cohen said today, \"Sharon is blaming the army. I do not believe that the commander of the operation does not know the time-table of the very operation that he is heading.\" He was referring to remarks yesterday afternoon by Brig.-Gen. Naveh - only hours before the withdrawal - that the army might remain in Gaza for weeks or months.