It is terribly important to have communication between the WRs and the QB. The coach is the guy who makes sure that happens. Palmer retired rather than play another year on a team that lacked that communication (my supposition). When I saw Smith and Crabtree have an incomplete pass together or an Int, and Crabtree comes out of the game and sits next to Troy Smith...what does that say about communication. A Smith should have sought him out to get it straight but there was no commoraderie between them. Perhaps this is one reason VD got in Crabtree's face?
It is a two way street but if most of the receivers are fine with the QB but one is not, that indicates a problem with the odd man out.
Ginn is evidently making progress this camp and (along with Edwards) this bodes well for the offense. Most excited I've been in a number of years about this team!