I don't necessarily agree with this.
From the standpoint of political optics, it makes a lot more sense to launch an attack as a "counter-offensive." That's because ordinary people are generally sympathetic to someone who beats the sh!t out of someone while fighting back.
Notice how quickly public sentiment turned in favor of people like Clarence Thomas and Brett Kavanaugh once they came out swinging against vicious, slanderous allegations against them.
In Trump's case, the public reaction is likely to be much stronger because the stakes are so much higher and people can easily put themselves in a situation where they're facing LEGAL trouble over outrageous and unjust allegations.
I have thought that for a long time. People can relate to the false accusations that Trump has been facing.
Trump can come out swinging but his defense team doesn’t have to totally expose all these connected people to defned him and close this impeachment sham. THEN after this is closed and likely cloes to or after re-election would be better time to announce investigations of those involved.