It's easy enough to point to --and stray in-- inward-looking abstractions and generalities when there is nothing concrete to fall back on but conjecture. Let us humble ourselves before this truism.
I think the Arbcom should accomodate a separate "case-review"
facility, and that the Arbcom should grow to accomodate the growing need for clear and documented review.
What would that entail, slightly more concretely? I think an intermidatory process may work more efficiently. If there is a need for immediate review of administrative action, there is, in addition to the normal channels of DR, [[WP:AN]], [[WP:AN/I]] ([[WP:3RR]] when applicable), and [[WP:PE]]. Is there a great need for, not simply more arbitrators, but a specific admin review mechanism? (an open question) What benefits are there from a separate format, according to this (at this juncture, very vague) proposal? I remain very much open to persuasion (either way) on that front.
A cursory reading of http://en.wikipedia.org/wiki/Wikipedia:Requests_for_arbitration/Stevertigo/E... , to use a totally non-random example, reveals excelent editorial skills but very poor admin descision-making, in any fair venue, I would argue. So, platform-wise, I think it's important to keep in mind that admin actions and editorial preferences are or are alleged to be almost always the decisive factor behind administrative abuse, that it dosen't take place in a vaccum. As a rogue admin who has for long escaped sanctions (but my time will come again, sooner than I may expect, too). For example, I have purposfully chose not to rollback vandalism off of (legitimate) Wikipedia accounts held by Nazis, and I have rollbacked vandlism off of a Nazi account without knowing it was one at the time, and regretted having done so. Lacking the moral highground is, indeed, a harsh mistress.
But I digress. Again, there needs to be policy proposals of far more concrete (or at least, illustrative as per specific examples) nature in order for us to much more safely speculate and guage on what is likely to translate into a worthwhile advance.
El_C