Dalton is worse than I recall and I remember him being pretty darn bad. Yuck.
They went from a top-notch O-line a couple of years ago to one of the worst.
They also went from having a good OC (Hue Jackson) and a good OC (Jay Gruden) back to back. I think Zampese is probably a good QB coach and is likely the reason Dalton was on-point for a couple years, but that offense has been hemorrhaging talent...Sanu, Marvin Jones, Gresham, Zeitler, Whitworth. That 2013 team had all the previously mentioned talented players plus Mike Zimmer as DC, Jay Gruden as OC, Hue Jackson as RB coach, Ken Zampese with QBs, etc. That was a stocked team, getting stomped by a mediocre San Diego team in the WC round of the playoffs is a massive underachievement.