Sage is a six year veteran. Last year was his fifth year so at least he had veteran experience. Vick on the other hand next year will have no playing time experience and one year of watching football.
I can see where you are going down the road 3-4 years from now but still, Vick's not that good.
Oh yeah, the Chargers pass D is pitiful. Sage picked a good game to come into. Great performance but not something worth talking about a year later and using as an example to defend a guy like Marcus Vick. And it didn't hurt having Chambers in there either, he made some amazing catches to help Sage out.