Not being disrespectful at all but why change something that is working?
I'm of the opinion that a coach should know who their best 17 is before the season starts, and spend the year trying to get them working as a team.
Roger Tuivasa-Sheck, Lolohea, Hurrell, Kata, Vatuvei,
Johnson, Leuluai, Lilyman, Luke, Matulino, Hoffman, Thompson, Mannering,
Lisone, Vete, Sao,
Roache would have been our top 17 before the season began in terms of talent.
So we should be trying to get that team on the field (allowing for injury return etc). We didn't invest in them for nothing.
Out of that list, only Hurrell seems to be in question. I'd like an explanation why he isn't in favour. Ayshord and Kata both have looked like clowns at times at centre, Konrad hasn't even had much chance to show if he's worse or better. I actually don't care if players have been lippy. If McFadden can't bring the best out of him, then move either Hurrell or Cappy on.
Back to your question, why change a winning side? A win against 2 weak teams means nothing. Post Cleary, we've only beaten the weak teams, flattering to deceive, then when we get to the good teams we drop our nuts. Last time we came up against the 'dogs of war' we got pushed backwards. We need all the firepower we can get. Ayshford looks ok now, but he and Kata got owned by the Broncos pairing. In short, we need to improve, and Manly are our bogey side.