qwerty > So according to you when there’s a pressing need one is allowed to change the Torah.
this is not what I said. Maybe you need to explain what Gemorah contradictions you mean. And I would presume R Feinstein and people of his stature would have pointed it out. What I do mean is that often new circumstances require different actions. Gemora itself brings enough examples – such as writing down Torah ShebAlpe, changing how to organize schools based on whether the approach worked out, etc. I imagine every time someone suggested to change how school worked, someone else said – this is against what chachamim said. L Rebbe definitely cared about Am Yisroel and tried to do something about it. Was he always right and were there negative side effects? This is a separate question that may take some time to answer.