This will be settled in the new CBA- whether its a mandatory slotting system or some kind of a rookie cap, it will be settled- trust me.
In terms of an international draft, it's ironically some of the small-market teams that are preventing that from happening. For instance, the Pirates have recently completed a very expensive, state-of-the-art facility in the Dominican Republic fully staffed with scouts and everything else you can imagine. After spending all that money down there, they have put up a stink about the possibility of an international draft. Sounds short-sighted I know, but it's a sad reality nonetheless.