IMO, teams are mistaking the importance of a QB for what you should pay for one. The percentage of cap going to QBs is getting crazy.
Water is very important. You die without it. But you pay little because there is plenty of supply.
But for fortunate circumstances for Purdy, he could still be warming the bench. Same for Dak, really. Downroster QBs don't get a lot of chances. I bet there are more starting quality QBs buried on rosters.
Draft more QBs. Carry more QBs on the roster. Play more. Run more. Develop more.
Big bonus in cheap QBs on the field is that you can run them. Huge added dimension to an offense.
Build the rest of the team. Conserve cap. When you hit on a good QB on a cheap contract, and the team is quality around him, then you spend free agent money to push the team over the top.
Who knows? Maybe that's the plan now. Lance would at least be a step in that direction.