Many people's idea of resting a few is actually to play the same players but in completely random positions. Currie, Westerman in the halves? Russell at hooker? Come on, these are recipes for disaster.
We would be better promoting a young half back from the academy and playing him alongside first teamers in their normal position rather than shifting everyone about.
If we don't have lads who can step up, play the first-choice 17. They will have had a 9-day turnaround anyway, with a full week until the next game, so they shouldn't be burned out.