And I think the Carr deal too goes back to failures in the draft. They had chances to draft QBs like Jackson, Love, Hurts, and even Mahomes if Payton had kept his mouth shut but either they made bad evaluations or chose to take other positions because they were thinking too short term in the draft.
You make mistakes like Carr when you don't have a good young player on your roster to step up when an aging vet retires or gets too old to live up to his contract. That's true at every position including QB.