eveyrthing was concrete
ohh, i see. you don't understand what concrete means. Let me provide examples.
If I say "i'm going to study for this test from 7 pm until 10 pm" that is a concrete plan. I have provided details of what I will do and when. If I say "yeah, i'll study at some point" that is not a concrete plan. I have given no details of what I will do or when.
In the speech you linked to, they said they would provide resources. They didn't say what resources they would provide. They didn't say when they would provide them or if every school would get them. That is not a concrete plan as it lacked detail of what they would do. It is a vague promise that they would do "something" without defining what that is or when they would do it.
They said they would come up with some recommendations for safety. They didn't say if these rules would be required. They didn't say if the rules would apply to all schools in every state. They didn't say what these rules would be. That is not a concrete plan as they provided no details about what their policies would be.
So no, they provided no concrete plans at all as far as I can tell. If I am wrong, please direct me to where they laid out the details of what resources they are planning to provide and what exactly the safety requirements will be for schools that are reopening.