Weekend mail call:Joey from Vernal, Utah, wants to know if I think the 49ers should go after a bigger receiver as opposed to a smaller speed receiver.Bill Williamson: I have no problem with that. I don't get too caught up in types of receivers. I like good receivers, that's the only the requirement I'm looking for in a receiver. If he is good, he can help. In the end, it doesn't matter what type even though the 49ers lack a true burner at the position.