I think there are actually lots of options to draft players that can fit into our defense. Since we run a 3-4, our needs are NT and DE. I actually wouldn't mind drafting one from each of the below categories.
I would prefer to address the secondary (CB/FS) early in the draft and then one of these players. Ideally Xavier Rhodes (CB), Jesse Williams (NT)/Datone Jones (DE).
Now that we have Boldin, I think WR is less of a need. I think addressing the D-Line (NT/DE), OLB, CB, FS, K, C, OG, OT are now our biggest needs.