Which 49ers backup quarterback would you trade?

Guess what? It’s another San Francisco 49ers quarterback discussion. But rather than risk an entire season as a whole, or say one sucks while the other is amazing, I ask a simple question: Assuming Brock Purdy does win out the starting role AND Kyle Shanahan decides this roster isn’t big enough for all three of them, who between Trey Lance and Sam Darnold would you trade?

Now, let’s be transparent here. The 49ers have picked up the phone for Trey Lance calls, but they are not shopping him around. Sam Darnold just signed a 1-year deal so signing then getting traded this early wouldn’t make a lick of sense.

But that market will heat up at the end of the preseason. Quarterbacks get injured and…