I think that off days are kind of dumb. I don't see any point in having off days between the conference and non-conference schedules. Besides WIS could make more money because the seasons would be a little shorter. I love the 24 hour window before recruiting, and the mass calling option. These are all great suggestions.

Team prestige in DII and III.  The most recent season is weighted far too heavily.  I just saw a team, with back-to-back losing seasons, make the Sweet 16 and advance from C+ to A-

More time once you can purchase FSS and when recruiting starts, maybe once sign ups begin you can also purchase FSS.

I would like to see a +/- column added to the stats page. This would help in the decision making process when determining starters, or will allow you to see weak points in your lineup more clearly.

Conference prestige is an issue, prestige should be tied to each team's success and I understand the need to have some baseline, but I think the current system is too reliant on baseline levels. 

Recruit generation is an issue too. There need to be more mid-level players available so a mid-major who creates a team geared around upperclassmen might be able to compete with your typical Big 6 school that has a bunch of players who are awesome as freshmen.