Lots of things can be true at the same time...
Did Lance do anything today to prove that he is worthy of being an NFL QB? Nope.
Is it time to pull the plug on Lance? Nope.
I think the Cowboys need to play this out over this preseason. They need to see progress and improvement over these next 2 preseason games. That's what I'm looking for out of Lance and nothing more.
What he did or didn't do in college or SF is completely irrelevant, IMO. It's all about right now. These next 2 games. That's all that matters.