Why Aren't Are WR's Not Getting as Open as Other Teams Seam to be able Too??

This is my first fan post here. This isn't going to be about Henne or the quarterback situation as I feel its been talked about way too much on here.

I've been able to see all the games this season so far and have watched multiple of other teams play as well. The one thing that I find interesting is how often some of the other teams WR's get very open compared to the Dolphins. It seems like every game the Dolphins WR's seem to be covered well with a defender hanging all over them with another closing in fast. Is this a case of the plays themselves or is this the case of the WR's not running the routes and putting moves on the DB's to get open or predictable play calling? I feel like every pass I've seen has to be put in tight places every single time. I rarely see are WR's break free from their coverage (and exception to Bess every now and again). What do some of you think?

I feel that the play designs are not working well to get guys open and feel the plays are not all that affective against some of these top defenses in the league. Is this something we can add to the list of what is wrong with Henning as are OC?

Please lets refrain from knocking on Henne here (seen and heard enough on these posts already). This should not be all about him as this is a team sport.