Selectors have their favourites. Always have done, always will.
A selector that hasn't done their homework on the cattle perhaps shouldn't be selecting.
Many of these boys have been in front of selectors on many occasions for both club and school, and most of their strengths and weaknesses are already well known to the ISA selectors. Most of the selectors are well aware of the selfish plays that the boys will attempt to make themselves look more "selectable" for the selectors, and they have generally been around enough to see through those and identify which boy is doing the unspectacular but essential technical work deep in the bowels of the breakdowns and tackle contests, and which boy has a propensity to seagull and not execute their basic job description.
All selectors have had various degrees of bias and self interest. Remember they are the ones putting their reputation on the line if the selected squad doesn't perform on the field. Just look at the ridicule that Papa was subjected to following what some refer to as the "Papahatzis Experiment" about 4 years ago when the NSW I team was outperformed by NSW II at Nationals.
For those not around at the time, that "discussion" got so heated and personal that the Mods had to issue a directive that the subject was not to be mentioned any further.
Also consider the rants and tirades that get directed towards SJRU Zone Selectors, SJRU and NSW JRU selectors about their incompetence, transparent cronyism, team/club/district bias and even borderline slanderous allegations of outright dishonesty.
I for one am on the record here as having a go at the PROCESS used to select teams from time to times, not the selections themselves: - Exhibit A - the (previously) Annual Clusterduck that was the selection process for the various NSW U16 teams. Exhibit B - The circus that was used last year for the SJRU U17's.
Anyhoo. IMHO the incumbents deserve a degree of special treatment, and it is up to the challenger to knock them off the perch. The incumbent knows the structures, plays and game plan (they don't change all that much from year to year) that will be used and has either demonstrated their abilities to perform in that environment, or if they haven't, they will be going into the trials with a note to that effect against their name. One bad performance in a head to head artificially contrived trial environment, and conversely one good performance in that same environment, may not necessarily provide that evidence to drop an incumbent or reward a challenger.
Rant over and in summary, I can't see any Association Selector (ISA incl) making wholesale changes from previous years representatives who return. There will always be one or two surprises, but even then there is usually some objective performance based evidence that can be found to justify that selection.
On the other hand, Coaches reserve the right to absolutely bollocks it up and play a flanker at halfback (italy), an outside back at flyhalf (Dingo), a specialised tighthead prop at loosehead and vice versa (too many to mention) but that is another story.
Anyone have the squads yet?