Don't mistake this for disagreeing with anything in your post, but I never understood why Bess was never used as a deep threat. I think his speed is under-rated, mostly because he never gets a chance to get going on punt returns and therefore looks slow. We all think of him as a shifty slot type guy, but I think there is potential there for more deep balls.
I disagree with this a little bit, as I think where Bess shows his speed best is in and out of his cuts, and that he lacks true top-end, deep threat, "blow past ya on the post" speed. I would love nothing more than to see Bess' development focused in on the slot WR role, because I believe that is where he could contribute the most to Miami's offense.
This all comes back to offensive schemes and philosophy. I think our coaches were scared to promote the deep ball in the interest of protecting from turnovers. Although I still believe we need a more "dangerous" receiver, I think a lot of our problem has been our coaches offensive mindset. What the coaches were trying to do only works when your defense is dominant.
I agree with this completely...though I think it's natural to expect a new coaching staff to err toward the conservative side of things, especially given the skill sets of most of their primary offensive producers. I hope that, as we add more talent to the offense, it translates out to more aggressive play-calling to make use of that talent. We definitely need a true #1 WR though...