Shipperley hasn't performed better than average in his three starts, whereas Davies went well in his one start, and I assume he went well in the Pacific Rugby Cup. Makes sense that Shipperley was replaced.
Ant came back earlier than expected from a major operation, and he's been clearly short of a run in his chances. The guy needs games to get back to his level, but the Reds can't afford to carry him right now. He needs club football, in hindsight Ant should have been playing in the Pacific Rugby Cup.
There's no way Anae would replace Saia as a hooker, as has been mentioned.
Beau over Gill just won't happen. Beau is willing, gives beyond 100% and throws himself around, but is a limited player. I love Beau, but Gill is a far better all round player. Beau is fine coming off the bench and is doing a good job. Did Beau really give any more impact than Schatz or Quirk?
All of the selections make sense externally except Saia for Hanson.