Could Kingsbury replicate his offense with Spencer Rattler?

He shows flashes, and I get that, but the odds that a fifth-round guy will turn into a franchise quarterback or even a solid backup are quite low.
Odds are low but there are plenty of examples of solid QBs that have come from mid and later rounds.

Is Rattler that guy - doubt it. Though, a little spark of hope goes a long way around here. Heck, plenty on here were overly excited after our first two offensive showings of the year.

Some not to distant examples of reasonable talent...
That being said I fully expect are QB for next year to be Carr (provided he is healthy).