Yeah . . . I'd be worried.
I just re-watched the first half of Satruday's game. Without Kap's running for first downs, the Niners would have been nowhere; too many misconnections on passes that should have been caught. Crabtree is the ONLY reliable receiver. DW is maddeningly unreliable and he hasn't got the body control to make clutch catches reliably. If a ball is thrown to the sideline and he catches it, you cannot count on him to make sure that he comes down in-bounds either. VD is a bit of the same also. Moss has no pizzazz or fight in him. His skills are greatly diminished.
This is not a good situation to be going into Atlanta facing. There is NO WAY that Atlanta will allow Kap to torch them with the run the way he did GB. This aspect of the Niner game came as a complete surprise and had not been previously unveiled. Altlanta will have a week to plan for it and they will. Theoretically, that should open up the passing opportunities. The Niners have the QB to exploit that, but, as mentioned, unreliable receivers, save one. Not good.
What will Roman's ace-in-the-hole be this time? Incorporating more Jenkins, LMJ and Garret Celek? Sure hope that they come up with something and I do expect that they will have some plan. Otherwise . . .