I just can't see the value in shifting Folau from the No 15 spot when he's the best we've had there at test level probably since Latho.
But DHP on the wing would provide a good balance in having an extra kicker in the back three.
So, my preference if we are looking for a new/replacement/temporary No 14 would be 11 Tomane, 14 DHP, 15 Folau, bench Beale.
I certainly agree with Lindommer that Holloway is well on track to make the 23 if Poey plays 8, or the starting side if not. The competition is McCalman who imo is just a workhorse who doesn't bend the line with ball in hand, and Vaea who doesn't jump (at least not often) and has some fitness questions, but along with Holloway can bend the line and hurt in defense. Holloway's other value is that he can cover lock and I presume 6 and jump in the lineout.