Got some similar ideas to what Brooks threw out:
1) Limit Position Changes heavily, each player only gets 1 position change for their entire career. Draft a SG and want to develop him at PG? You can but you have to stick with it.
2a) I wouldn't make every attribute available to the league via excel, but I do think there should be some transparency each year. After TC each year release an excel file with every players Potential, Handles, and 1-2 rotating attribute reveals each year.
2b) Pros to this would include: eliminate pot scouts for commissioners, and some attribute scouting as well. Don't have to worry about someone like daulten lying about a players potential. Also handles is such an important attribute, the transparency there would be huge in assessing players values.
3) Pre Season DC - Sim 1 DC rewards. 75% of Gm's run fuck around DC's in pre, or play players in ways they never would in the regular season. Pre season is still valuable for those that utilize it wisely. I would offer a GM cash incentive for those that run "SAME" DC from pre to sim1, and a slightly lower GM cash incentive for those that make minimal changes from pre to sim 1 (like 3 bold changes or less). Would hopefully decrease the amount of work the commissioners need to do for Sim 1.
4) having to IR DLG players is dumb. This rule forces the commish's to sign random players sometimes when GM's fail to sign the right number of players for the roster. Keep the DLG boosts, maybe title it "2 Way Player" instead and let those rookies / sophomores play so commissioners don't even have to think about this for each DC they enter.