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

People must remember that it’s the SF defense that’s the star of that team. Their offense complements the defense. As long as Shanahan dies ask Purdy to do too much, he will be ok. As for Lance, he’s really still a rookie, just like Purdy. But hasn’t his season been cut short for two straight seasons due to injuries?
I don't think he was named starter last year.