Stuart Lancaster rallied behind his captain Chris Robshaw after England's defeat to Australia prompted questions about the openside flanker position.
Lancaster conceded England have a shortage of scavenging flankers like Australia's Michael Hooper, who got the better of Robshaw at Twickenham and was named man of the match.
The head coach dismissed the idea of Robshaw being switched to the blindside, with Tom Wood likely to replace Tom Johnson in the six jersey, and said: "Chris has been named captain for the series and I'm more than happy with his contribution on and off the field. I don't see that Chris' performance would warrant being dropped."
He added: "There are not many in my opinion who play at seven in England in the same way as Michael Hooper or Richie McCaw do. It's quite hard to magic someone up to play in that way in our competition.
"There's a natural instinct players have to become sevens. I know because it's the position I used to play, though I was not quite big enough or tough enough for the highest level."
Worcester's Matt Kvesic is on Lancaster's radar along with Andy Saull, although his progress has been hampered by a lack of game-time for Saracens.
And then there is Steffon Armitage, who was honoured on Monday as the best foreign player in the French Top 14. He fits the bill perfectly but is currently unavailable.
England have a policy of not selecting overseas-based players and Lancaster appears unconvinced that Armitage can cut it at the highest level.
"I want our players to stay in England and play in England," Lancaster said. "At Toulon he plays behind a dominant pack and they have got world-class players in every position. They are beating everyone on the front foot.
"To play for 80 minutes, at the highest level in Test rugby, when you're not on the front foot and have to keep running around at high levels of intensity, you've got to be fit."