This is the main problem in my opinion. It's a passing league, the team doesn't yet have the kind of passing offense to play competitively against the better defenses in the league, the players themselves know it, and it limits the goals they set for themselves for the season (if only perhaps unconsciously), hence the emotional flatness in games such as the one yesterday.Look at the teams we lost to, five of them are top ten in defense DVOA, the Panthers, the Bills x2, Tampa Bay and Baltimore, and the Saints is just outside at 11. The only team we beat with a top defense was the Bengals and it took OT to do it with Dalton playing like total garbage and they lost their best defensive player during the game, and we had to rely on our defense to get our points for us..
Clearly our offense doesn't match up well against top defenses. Another thing that stands out is we've been completely shut out for several halves vs the above teams.
This team is still functioning with a developmental quarterback folks. Unless and until that quarterback plays well enough to make the other players themselves believe they have a chance to be competitive at a high level in the league, the team itself is going to feel limited and be prone to emotional lows. Couple that with an offensive coordinator who does a poor job of mitigating for that insufficient and not-fully-developed talent, and you get the kind of physical and emotional valleys we saw yesterday.
You have an offensive coordinator who's putting the offense on the shoulders of a not-fully-developed player, and the rest of the team is affected by that both physically and emotionally in my opinion.