That's a huge blow. Boldin isn't stretching the field, Manningham is still recovering from his ACL tear, and Jenkins couldn't even see the field last year in a thin WR corps. I do like the rookie they drafted, but it's hard to expect a 4th round rookie to come in and be great for them. For some reason, Kaep didn't have good chemistry with Davis. He barely got receptions once Kaep took over. Crabtree was really blossoming into a stud WR once Kaep took over, so this is a big loss to the Niners.