I really enjoy the depth of the league, too. I enjoy having the affiliates and the age limits. It is a lot of work to administrate but having the age/roster limits is a similar mechanism as the salary-cap at the MLB level; it forces talent onto the free agent market. Either promote them or lose them, at the minor league level just as you either have to pay them, or let them walk in MLB.
Also, I don't see how raising the age limits would be less work to administrate unless we cut down on the number of groups we assign limits too. You would still have "limits" to pay attention too.
Maybe using the same age limits for the entire groups including the two DSL leagues along with the AZL league? Raise the limit for them combined to 21 years old.
Then combine the two "SSA" leagues with the "A" league teams into the same age limit grouping, and raising the age limit to 28 years old for any player in either league. Keeping the same affiliates would help the owners manage their assets by having the affiliate teams to help them keep track of a players development, but at the same time, administrative duties would be cut in half.
That would narrow the same number of players from 5 different levels into 2. We only have 2 age groups to worry about instead of 5. We could still keep the affiliates as they are now, which I feel makes it easier to manage my organization in categorizing value based on the player's actual level of play with their major league team.
With the new groupings and age limits, we would all control the same players longer, but with less work while keeping the minor league team affiliations so owners can judge talent based on the player's actual level of play within his organization.
Just thoughts...