Edwards has been sacked ten times already and has trouble converting first downs because of the hundreds of false start penalties in each game. I think he's doing pretty well considering. Some notable QBs with lower yards/completion numbers than Trent:
Tom Brady
Brett Favre
Carson Palmer
If Trent completed that one deep ball to TO for a touchdown, nobody would be questioning his skills. And if the Bills held off the Patriots in week 1, everyone would think the Bills are a contender. Footballs funny like that