I expect Goneva's defence to be exposed by JJ, which is a shame given how well Nayacavelu has played at 13 for Stade Français.
For England, the lack of a reliable thrower at lineout must be a source of concern. It forces the team to field 2 LO specialists that might not have made it into the starting XV otherwise. There shouldn't be any problem on Friday (I'd be surprised if England don't win by 20), but there might be a few surprises come the big games, especially at the breakdown and at the scrum.
Great backline though, the fact that Nowell isn't even in the 23 is a testament to England's depth there.