Few observations from me to add to the above.
Slow play the ball didn't help us - I actually thought the ref was pretty pure at policing this, Cas were laying on for far too long, however:
Our passing was appalling. First receivers always standing still with balls going above and behind them is no way to start an attacking play.
All our attack was focused around the ruck, which didn't work due to slow PTB. No early ball given to Macdonald or others to exploit week defenders like Fonua.
Our wingers are infuriating. Can be great going forward in first/second tackles, but constantly coming up with absolute howlers! Handley missed big time.
The honeymoon period is over with Smith. I like him, and think it will work out, but results are the lifeblood of professional sport.
Cas were dire and are a poor team, so to lose the way we did is pretty inexcusable for me.