Who knows what is going on in Pegula's head?
On the one hand, Pegula seems to genuinely care about pleasing the fans, and also to genuinely want to build a winning team.
On the other hand, he is obviously fond of Regier and Ruff and wanted to give them ample opportunity to build a winner with his resources and support.
This situation has to make him feel very conflicted.
My personal opinion is that Pegula will ultimately concede to fan pressure and his own desire to win, and direct the firing of at least Ruff (probably not Regier), but not until after this season. It's a shortened-season, and I suspect Pegula's personal respect and admiration for Ruff will lead him to let Ruff serve out the remaining few dozen games, and not subject him to the embarrassment of a mid-season firing.