Professor Deborah Pearlstein published a piece for the American Constitution Society on President Trump invoking the Defense Production Act (DPA).
"Deploying these authorities should be a no brainer. Yet, like many such statutes delegating power to the Executive in the event of war or emergency, it delegates power not to any particular federal agency, but directly to the president alone, unconstrained by expert guidance or necessary processes that might otherwise produce some action." Pearlstein writes.