The exact issue our team had last year. Russ had his best game all year, which put him at approximately one of his better games with us last year, and he was still not great.
His team failed him with the drops but the fact is: He's not throwing very good balls for most of his passes. He's throwing too hard on short routes, he's throwing behind on crossing routes, etc.
Denver is a bad offense this year. They are spookily similar in their badness to our offense last year. Not efficient. Three and outs galore. Points scored on miracle plays that are coming fewer and farther in between.