To me, the key question is," Does this decision serve the goal of developing Maye as the eventual long-term starter or does it not? I take the #1 goal this season to be the development/evaluation of recent-acquired players, Maye first and foremost. I care very little about how many games they win.
I try - maybe to a fault - to be definitive in my views, but i am frankly not sure how to answer my own question. I won't rehash the arguments. In the end, as generic or tedious as it may sound, I think a circumstance in which Brisset plays for a period in which further facts are gathered regarding the two qb's, the o-line, the receivers, the new coaches, and so on is probably wise; and I suspect that at some point those accumulating facts will suggest that it is time for Maye to play and that that is what they will do. The facts will - one hopes- determine when that moment comes. This isn't an exciting prospect, not a prospect offering much in the way of immediate gratification, but it might just be - given how far the franchise has fallen - for the best.
I suspect fwiw that Mayo's lousy job of communicating throughout the process has served to obscure such wisdom as the decision might have. The underlying problem, though, is the lousy roster and the learn-as-you go management team. Mayo is part of that problem, but he is not its cause. That falls on Bill and Robert, on Bill for his lousy GM work and on Robert for being such a feel-good squish during the hiring process.