I read somewhere that some of Valachi's revelations were actually spoonfed to him by the FBI.

Anyone else hear that? That could explain some of the discrepancies and loose ends (along with the fact that he was after all a criminal, albeit not a very successful one). I also read suspicions that he was an informer before the prison incident in Atlanta..

"When the snows fall and the white winds blow, the lone wolf dies but the pack survives."
Winter is Coming

Now this is the Law of the Jungle—as old and as true as the sky; And the wolf that shall keep it may prosper, but the wolf that shall break it must die.
As the creeper that girdles the tree-trunk, the Law runneth forward and back; For the strength of the Pack is the Wolf, and the strength of the Wolf is the Pack.