I'd start Francis at 12 in both the first 2 games. One game with JJ outside and the other with Slade outside. Ford to start one, Farrell to start one. Tuilagi on the bench for at least one of the games, maybe both.
I reckon Wilson will be fine, so he will start at least one of the games at 8. Same with JC. Looks like it might be the USA game for them both. Give Ludlam a start, maybe in both games, and swap Underhill and Curry in the first 2 games. Obv then they play together vs Argentina and so on.
The 2nd choice players, that are clearly 2nd choice should start the first 2, as that's there world cup playing time about over, barring injuries. So if we get those injuries at least they have game time.
That's my bit anyway, what EJ will do is up to him and his staff and will turn this place into meltdown when Billy plays 160 minutes in the first 2 games...