Then again, maybe Fergus McFadden and Conor Murray might have benefitted from more time in the warm-ups. Kidney made the brave call, but he made it very late, probably later than he should have.
Johnson's an odd one. Sometimes very bold, sometimes very conservative. Seymour could be the answer at 7 as Olyy has indicated, by all accounts he has started the season in electric form (as has young Luke Wallace at Quins); however, to bring it back to the previous point, Warburton is currently putting the sort of international openside performances England hasn't seen since Rees. Rees I believe would have gone on to be one of the best in the world without his injuries; Warburton is very close to being such.