The IDF cannot go in directly, because it has limited capability to conduct a residential operation. The IDF was facing a renewal problem in this area, on top of a political crisis woven with Netanyahu's ambitions and a turmoil that included the resignation of thousands of military personnel.
Urban operations are an area in which very few armies in the world are truly competent. Likewise, urban conflicts against asymmetric elements are where the shills of many of the world's most polished armies have fallen off. For some countries, it is a reason to cooperate even with terrorist organizations rather than inserting their own soldiers. Because even if the target is achieved, high losses are inevitable.
Now there is pressure on IDF to enter Gaza as soon as possible. Every day the media outlets are reporting and predicting when the operation will start, and of course some of them are reporting the risks. You can't get a very large force into a narrow area, but once you're in, there will be all kinds of traps and 30,000 well-deployed asymmetric elements. When we look at asymmetric warfare, urban conditions and the characteristics of Gaza both geographically and in terms of Hamas fortifications, Hamas' effectiveness will increase and in a way it will be balanced. They also waiting for IDF' move. In a city with no air defense, it is easy to destroy the Gaza step by step, sometimes killing 200-300 civilians for one Hamas militant, after all, you have the support of America and the Zionists media. But in a ground operation the number of coffins will increase in numbers that will make this policy questionable. We cannot isolate this whole operation from the political struggle inside Israel.