Well, I think putting the model showcases together is probably a bad idea, excpept at the level of a nuts and bolts only kind of centralized 'management', if that is even feasible. Forget all the stuff about conglomerates for a minute.
Anything where the models give up rights to their content though is bad. They should at least be in a position to go after royalties and not flat one time fees since you are talking mainly about publication in this context, and not live appearances.
I mean some photographer takes a bunch of pictures and claims exclusive rights for a product that can be reproduced en massé while the model is stuck with a one time fee. IMHO it should be the other way around. That is the situation that is similar to how the record companies work, and one that should be changed. Without that model, the 'agency' has nothing, and the business structure has got to reflect that to make it fiscally viable for the model. This flat fee thing is THE biggest problem as I see it becuase it makes it impossible for the models to retain any long-term fiscal viability.
So, I am thinking in terms of publication (mags, vids, pics on the net) something needs to become a viable alternative that uses this type of structure if we truly want to create an environment where it is feasible for the model to go to the lengths they do. If they can at least get paid for what they have done as the demand is filled instead of up front, then it makes them able to keep pace with the market better.
I'm not familiar with the exact figures on what models get paid for posing, so in terms of a magazine publication, a one time fee might be better, but if a model is featured in a magazine, and that magazine sells 1,000,000 copies at $5 a shot, and she gets a full 1% of that publication's sales for being featured, that's $50,000. If I were the one doing the mag, I'd say that's fair because I have to realize that without that model, I'm not going to sell magazines. I have worked for newspapers and done a couple nationally released catalogs, so I know what it involves, and I still think that it could work that way. The numbers might be off, but let's face it, this is not a fad or a trend. Guys like big boobs and it is NOT going to change, so if a company postures itself to not only take care of the girls they feature, but also to create an environment where it becomes fiscally viable for the models to continue doing what they are doing because of the nature of the enviroment they are doing it in, then you end up not working against yourslef by discouraging girls from going this direction.
Noble idea, I know... just thinking out loud. I may be missing a big part of the picture here, so if I am please point it out.