1. Solomon's report reflects and supports Rudy Giuliani's advice back in mid April of this year--going forward, we need to Pay Attention To Ukraine.
2. At the same time Solomon's report explains why patience is required, as I explained in Barr And Durham Are Focused On The CIA. The need to secure cooperation from foreign governments and their intelligence services means that Barr and Durham will need the active assistance of other persons and agencies within the US government, beginning with the POTUS himself. And their efforts will be resisted by the FBI and the CIA--the two agencies with the most to lose by the truth coming out.
That said, the opening paragraphs of Solomon's article, FBI, warned early and often that Manafort file might be fake, used it anyway, contains some of the most trenchant reporting I've seen in many months. Bear in mind, the "black cash ledger" is supposed to have been a record of payments to Paul Manafort:
When the final chapter of the Russia collusion caper is written, it is likely two seminal documents the FBI used to justify investigating Donald Trump’s 2016 campaign will turn out to be bunk.
And the behavior of FBI agents and federal prosecutors who promoted that faulty evidence may disturb us more than we now know.