I was just listening to Marrone's press conference and found this interesting: he was asked about AJ Cann who looks improved out there, what he thought was the biggest improvement he made and so on.
And he said that with the new helmet rule he put together a tape for the offensive line to show them exemples of their stance, who has a tendency to lower their helmet and put themselves at risk and the first player he noticed was AJ Cann.
Marrone said he noticed Cann had a tendency of lowering his head too often, putting himself in danger and with the new rule they are emphasizing to him to keep his head up,showing him tape on how he's supposed to play with the new rule and sutuff like that and as a result in addition to a better posture he said he noticed he's playing with better technique and better overall than he did in the past, at least so far.
Will be interesting to see if that translates to the actual games as well.

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