First off, thinking Flacco “shredding” the inexperienced Falcons defense, with a weak pass rush, that can’t hit him anyways in a practice in August should not be used as an indicator that he’s about to do that to a much more talented defense (and secondary) in a Baltimore, let alone a series of NFL teams. Flacco is 0-5 here for a reason, he’s not suddenly turning back the clock and going to carry this teams offense to victory after victory. The reports about his play in camp are good and fun to read, none of those reports are suggesting he’s morphed into Aaron Rodgers
Secondly, Saleh has already said it’s Zach’s job the minutes he’s healthy and ready to play. What is the goal of this franchise and regime? To win 8 games this year? Or to win a Super Bowl in the long run? This team isn’t good enough to win a ring right now. Flacco winning us one or two more games this year because his experience allows him to either not make a bad throw or see a specific defensive weakness in a “swing game” that could go either way will not help us win that ring. Zach has to be on the field and getting the experience to be able to do that for himself, so that next year and the year after when we are ready to compete for it all, we have a QB who has progressed enough to carry us through. Zach cannot become a superstar QB by sitting. He needs to get on the field and learn with the supports around him.
Tldr; unless Flacco actually is Aaron Rodgers and can carry us all the way, or Zach is too hurt to play, Zach needs to be on the field so he can work through his issues and become the best player he can be