I've mentioned in passing that Thorn / the Reds are clearly believers in Ben Darwins /
Gain Line Analytics theories around the importance of cohesion, skill and culture on team performance (obviously a strong Crusaders / Canterbury belief too). While the Rebels continue to bring in new players, the theory is their lack of cohesion will inhibit their performance. New players take a few years to build that, acknowledging highly skilled players can counter this a little (which the Rebels have).
Right you are Reg, throw in Leinster in that mix as well. It must be more driven by Thorn because the Reds have churned/burned through a lot of prospects before him, and Thorn coached a lot of this crop at u20s.
With one of (if not the largest) player pools in the country, the Reds
should have this approach as a default setting. By nature, they should be a 'retention' based team, producing to replace from below, rather than building a roster by market recruitment. The Reds feeder system is actually much larger than the Crusaders, they have to scout across the country to fill most of their academy.
They do however bring them in young and indoctrinate them in Crusaders ways. You would be surprised how many are not from there - Jack Goodhue (Auckland), Sam Whitelock (Fielding), Scott Barrett (Taranaki). Their depth chart planning extends years ahead, and only when an unexpected roster spot opens by an academy prospect not working out/experienced member abruptly leaving, do they go to market.
The cohesion factor is very important but not the only piece of the puzzle. Both Leinster and Crusaders have evolved and kept on top of the game from a tactical standpoint. As a coach, where are Thorn's tactical philosophies coming from? Since he retired as a player, the game has evolved dramatically.
Thorn's done a reasonable job of implementing some things like a visible 1-3-3-1 pattern, but this is already outdated and the Reds version is still very, very basic. A heavy forward-carry system he doesn't yet have the cattle for (physically young pack).
Aussie Rugby as a whole is still plagued by unnecessary territorial kicking. The game is just not played that way anymore, only exit kicking or contestable kicking is used by top teams, the rest of the time you use a system to retain possession, build phases and pressure, either break them or earn penalties down the field. This is one thing that Aussie teams struggle with. It seems a skill problem, a conditioning problem and possibly an IQ problem.
The top club teams globally, Crusaders, Leinster, Saracens have all dropped down to variations of a one-pod pattern, play much more expansive possession-based rugby due to favourable ruck laws, and have superior skills and conditioning (Look at Will Skelton's transformation) to play that way. Having said that, the first Aussie team to adapt and build a team that plays in this manner will dominate the Aussie conference for years before the rest catch up.
With Thorn being an inexperienced coach, he is still learning on the job. There is also only so much he can do. If he actually did come in and turned them into world-beaters it would indicate that the whole organisation is fine, but everyone knows that's not the case.