Wow, some seriously harsh critics here.
He earns a solid B. Needs to tighten up ball control, and work on red zone production.
As to the fumbles. Only one fumble was unforgivable. One was a desperation play, the other way partly a great defensive play.
He blew it big time in Oakland fumbling out of no where, but to hold his ass to the fire for the others is just assinine.