You can start to see the advantages just from looking at that squad
1. The chance for people who have been injured to get game time (Oakes, Kirk)
2. The opportunity for fringe players not currently in the 17 to get a game (Davies, Rickett, Goodall, Hodgson)
3. More chance to assess trialists (Andrade, Burnett, King)
4. A chance for young lads to play against men rather than boys ( the rest of the squad)
It does make you wonder why all teams don't run reserves
