Now that I think is the best use of DSL players. If you can trade them for anything of value at the deadline, that's a win.
The DSL system is awful. No player should be signing a deal at age 16. A 16 year old could already have six or seven years in the minors before reaching the age that many college players are first drafted. Often times these guys end up being rushed up through the system and you end up either wasting a 40 man spot on them too early or losing them to free agency unless you hit the miracle prospect. Way too many of them end up littering the benches and bottom of the lineups of our A ball teams before getting released or hitting free agency a year or two later.
In the history of this franchise, if I'm remembering correctly, we have three DSL players that have ever made it all the way up to Milwaukee from their own DSL team and maybe two good seasons combined among them. Outside of developing players you can use in trades, I don't think it's worthwhile to pay much attention to what's going on in DSL.