I wouldn't call them random as some of the ideas he introduces were planned for a while now, it's just he introduces them in a very vague manner. For example the Gaza plan was already familiar to his team: https://www.timesofisrael.com/the-man-with-the-plan-dc-prof-...
I think he introduces these ideas without fully fleshing them either because 1) he's testing the waters to see the public response, and to start a conversation; 2) he may not have all the details anyway and he starts with the first step.
I think he introduces these ideas without fully fleshing them either because 1) he's testing the waters to see the public response, and to start a conversation; 2) he may not have all the details anyway and he starts with the first step.