As Brock Purdy advances, I wonder if Trey Lance will be available

I also think they invested much too much in Lance, and a trade this offseason would be selling too low. The best they could get with a second-round pick. I also am sold on Purdy long-term. He is surrounded by talent, and defensive coaches are just starting to get enough video of his game to create defenses against him.
Is it the system? Just about every QB looks good in that system.