I am a firm believer in giving a young QB at least two years of starts (I would do three years if I am running things) before attempting to make a decision on their long term prospects with the team. Young QBs need time and will make mistakes like all QBs do. Patience is the key. The hopes are obviously very high but they cannot overtake common sense.
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I asked google “how many years should an nfl team give a rookie quarterback before moving on” and here is the AI Mode response ...
In the NFL, the question of how long to give a rookie quarterback before moving on is a complex one, as there’s no single “correct” answer.