No. of Recommendations: 1
Don't focus energy on primarying safe seats in the Senate,...
OK. With you so far. Don't waste money and effort on safe seats (though be absolutely sure they're safe, both Rep and Dem).
...don't spend time on internecine warfare over whether the country is ready for a hardcore progressive party (it's probably not)...
OK, though it is perhaps a uniquely Dem problem that a not-perfect candidate is "just as bad as a Rep", and then they don't show up to vote. See Sanders voters for example. How do you get them to show up if AOC or Sanders isn't the candidate?
Capitalize on the general thermostatic trend among the electorate to turn out the party that's been given a trifecta, get good candidates and give them the room they need to run a race that can win in their district.
Can you be a little more specific? Maybe take an example you're familiar with, and give some detail? Maybe a district in FL (since you're probably very familiar with FL, compared to AZ) that is potentially up for grabs if Dems handle it correctly?