A 15-man ML roster with 24 teams is ridiculously deep. That's potentially 300 prospects, and I don't really know if anyone cares about anyone past the top 100, if that.
At any rate, I just started a new auction dynasty league this year, and here are things we've learned/settled on. This is a 14-team mixed league.
- Make sure everyone understands auction. If possible, do a one-year auction redraft with your basic rules in-place. If you don't understand the dynamic of the initial auction, you can really screw yourself much worse than a snake draft. Better to get that out of the way in a redraft.
- We did $260 for the auction, which seems like a common number. Given the number of players you're taking off the board, $300 seems reasonable for you.
- Make sure you decide on an in-season limit as well. We have a $300 in-season salary cap, which basically allows teams to trade for a couple additional studs for a run at the title.
- Be careful with what I like to call "cute" scoring- uncommon stats, odd matchup rules, etc. The more of these you have, the farther you deviate from all the projections and advice that's out there, which makes understanding player value that much harder.
- We opted not to do contracts and just have player salaries increase $3/year (minor leaguers don't increase). Again, it depends how hardcore your managers are, but valuing player contracts for trades gets really tricky.
- Make sure everyone understands FAAB if you're using it, and be clear about the relationship between FAAB bids, player salary, and the FA pool. Basically, you need to decide (a) if the winning bid is the player's salary, and (b) whether salary sticks or drops to $1 when a player is dropped. We opted for players to keep their salary all year, with no relationship to FAAB bids. All undrafted players have a $1 salary. This allows people to be aggressive with FAAB bids without having to worry about splitting salary hairs.