Just the intensity of the play I imagine. Like I say it’s a scrum.
but it might not be that: it was just a guess. I suppose the real reason could be that Josh - one of the best qb runners in the nfl - just never thought of ‘going to the other side’. It would just never have occurred to him to do something that a ten year old child could think of.
Anyway, it's water under the bridge now. Have a nice summer!