At this point the roster is what it is. You can see the weaknesses reflected in the depth chart, but I expect Rhule to be able to find ways to use the talent that is available. Would it be nice to have 4-5 star talent up and down the 2 deep? Sure. But only a handful of teams have that luxury. The rest have to get something out of inexperienced or less regarded players.
I will say it really surprises me that Billy Kemp will return punts considering that it puts him at additional risk to take a big hit while we are pretty thin at WR in terms of exp. (Maybe they are trying to develop film on him for the NFL scouts???)
Also, I am not freaking out about the young WRs. I never expected them to be ready so quickly. Especially week 0 quickly. They'll play this year eventually. Not being inserted in the first drive of the first game isn't surprising.