Guidance for new owners:
I started my research with 1975 and the Red Sox were on top. This brought up a great example of roster inflexibility. Although the Red Sox load 24 players into the draft center, one is ineligible because he's only listed as UTIL - Cecil Cooper. It doesn't matter that he played some 1B that season, because he's a UTIL in the Draft Center and that's what counts.
You won't find 412K backup 3B Bob Heise or 499K OF Rick Miller in there either, or any of the Combined seasons (only Full/Partial get loaded). All their hitters cost at least $1M, which is something worth looking at when you draft since it's nice to have some cheap backups. You have only 13 Boston hitters available and 10 pitchers.
Keep in mind that you need to look at who's actually available to you and not just search for all the players who have sim-eligible seasons. You'd find 20 Red Sox hitters if you just did a team search, but only 13 are actually usable in this league. Granted, the Sox have plenty of studs and will be a solid pick for someone, I'm sure. But with some of the less talented teams, these limitations can be very helpful in handing your neighbor an inflexible roster that really makes them pay.