How can this question be made more focused? The question was closed without any guidance.
I voted to close that question because as too broad because the powers of the Presidency are vast and, often, vaguely defined. So the answer to any question that amounts to "what could the President have done" is going to be both immensely broad, and, likely, opinion based since people have different opinions on what they expect the President to do.
A complete answer would have to deal with public health concerns, economic stimulus, personal safety, the kinds of messages the President sends from the bully-pulpit, the powerful, but ill-defined role of the President in designing and advocating for (or killing) legislation, the kinds of people he puts in charge of the FDA and CDC, the guidance he gives to state governments, and the way that the President, as leader of his party in a time of hyper-partisanship, sets the tone for how Republicans think about and respond to this crisis. You could (and people certainly will) write a whole book on Trump's approach to the last few months, but any StackExchange length answer is going to be entirely incomplete, and that incompleteness is going to reflect the answerer's biases.
Before voting to close, I considered writing an answer, but trying to define everything the president can do, and evaluating whether he used those powers to help or hurt the country, is really a daunting and opinion-based effort. Answers are likely to fall into 3 buckets:
- The President did everything he could do – which of course will choose to take a inaccurately narrow view of Presidential power and responsibilities
- Here are the countless things the President didn't do, or did do which were counter-productive – which is going to lead to endless arguments about whether it's fair to expect the President to do X
- Vague answers like the one that's there now, which just describe the President's power, but don't really answer the question
In my opinion, a better way to approach this would be to narrow down the question to more defined topics. It seems like you already have an opinion on this, and you're wondering why these 3 steps he's taken aren't enough. So, why not focus on those steps? Questions like: "Why doesn't Trump get credit for the China travel ban?" or "Was the Defense Production Act effective at resolving PPE shortages?" might be more easily and objectively answered.
If you do want to keep it broad, you might want to remove the leading parts of the question. While you may think he's done enough, you shouldn't argue that in the question or pose strawman-like arguments (ie. "As best as I can tell, the main complaint from the President's opponents is regarding the dates/times of the above actions") which make it seem like you're more interested in pushing a point than getting an answer. I'm not saying that's the case, but on the internet, tone is hard to read and if you want someone to take the time to write a long, detailed answer, you should try particularly hard to show it will get a fair reading.