Naden is predominantly a centre.I like and agree your analysis for me AD could be a good center not a fullback but needing his kicking game must be 5/8 academic now anyway
Naden was a winger at Penrith and Dogs
Agree Brooks is not a halfback because he is a hesitant decision maker but he can run ,tackle and is fast .These are attributes of a center
We recruited and fixed up our forwards but our backline sucks
Source - https://www.rugbyleagueproject.org/players/brent-naden/positions.html