Last Tuesday, it seems. Law went to Reading to watch Mets prospects.
Tuesday 8/5, it seems. That's when Clemmey pitched against Chesapeake and Fitz-Gerald played as well. DFG had just been off for 9 days (last played 7/26). He played poorly that Tuesday, Wednesday, and Thursday (8/7), then sat until for 4 more days before 8/12 and the start of the streak he's been on recently.
I will guess there's something different in what he's doing now. The turnaround is too dramatic. When he had that stretch of 2 and half weeks only playing 3 games, they may have had him working on the kind of changes Law wanted to see.