Five-and-a-half years ago, there was something of a vacancy in Wales' midfield.
Only for a spell of a couple of games; the short gap between the Welsh careers of Jamie Roberts and Hadleigh Parkes. But in trying to fill that vacancy, Warren Gatland opted for something different.
For two brief matches against Australia and New Zealand, Gatland went away from hammering the gainline and looked at prising it apart with subtlety. So, in 2017, Owen Williams enjoyed a two-game spell at inside centre.