Scott is dependable without being a standout, while Roux is an unknown quantity at this level. Ricki is not really a risk-taker, and I guess that is shown here. Maybe he should be, I don't know. But I haven't seen Roux more than once/twice so I'm not going to start pretending I know more than the All Whites staff who would have watched him play.
Ricki is very slow to change his mind about players it seems. I think Payne and Howieson might have been been forced upon him by Emblin.
I'm not so sure that Ricki and others do that much scouting. Are they ever seen at ACFC, Waitak, CCM etc. friendlies or competitive matches (Emblin aside)?