The WR core is better than it was last year, we have that going for us. Each of the guys in the WR core have a skill that can compliment one another in this offense so it would make the loss of Smith maybe a little more bearable. You've got LaFell as your reliable 3rd down target, Hixon to work the middle and move the chains. Ginn that could hopefully be a serviceable deep threat. And the big question mark in the David Gettis who has/had the potential to do it all. Bryant isn't worth mentioning at this point.
Combined with Olsen. The RB's, and the occasional screens to Tolbert and now Kenjon Barner we should still be able to compete. Smith is still a huge help to this offense and it suck balls to lose him.
bottom of the depth chart you can argue is better. The guys who watch. Starters? I wouldn't agree w/ that.