There is not real significant difference between Dak and Garappolo. But one guy yesterday stood in a clean pocket, while the other was being harassed.
The common denominator off all the losses, save for the one to TB, was the offensive line could not protect Dak. I am not making excuses for Dak's gaffs.
But this offense is greatly different when Dak can play mostly unmolested.
Now the Kleenex Teardrop Set will throw a fit. But the fact is Dallas is as good a team as San Fran. If you take into account Dallas needs a left guard and right tackle, and a massive DT.
It's easier to blame Dak for everything.
Truth is, this falls on a front office that cannot see year after year the same problems with the defensive line and the offensive line.