Dont kill off this season. At the same time, there is no reason for 4 dayers to actually take four days. I agree with sohummisra that we should have designated match days, and I think we should do the season a little like the aussie domestic season, ie, play a four dayer and a one dayer against the same team on consecutive days. So, for example:
Monday: ICC vs Bitters 4 dayer
Tuesday: ICC vs Bitters 1 dayer
Friday (of the same week as above): ICC vs PC Rockers 4 dayer
Saturday: ICC vs PC Rockers 1 dayer
Since we have six teams at the moment, that would mean each team plays two First class, and two One day matches every week, and if each team plays the others home and away once, then a season will last for 5 weeks, and have a continuous, regular flow to it.
My suggestion therefore to prevent delays is to have a deadline time, in the timezone you are in Rickyp (which is AEST right?), and make sure each manager knows when this is, and what it is relative to their timezone. For example, the deadline might be 11.59pm Australian Eastern Standard Time (Universal +10) of the day before, and if that deadline is missed, you are free to sim the match anyway.
To do this, each manager should have a default test and one day team posted in their thread, or sent to Rickyp, and if the manager misses the deadline, then Rickyp can use that default team. If a different team is to be used, it must be posted in the match thread before the deadline, and managers are responsible for doing this.
In case you are unavailable to sim a match Rickyp, then you should have a preassigned deputy who will do so, and let them know when they will need to do so (perhaps, if you cant let them know, they can sim it the next day, if they dont hear from you and its not done, as a last resort). In any case, no match should be simmed later than a day after it is supposed to take place, so that things dont get behind.
I think those suggestions make sense. If we have more teams, then the season could extend in length, and likewise, it wouldnt be too long to wait for people who wanted to join the competition. (Perhaps a separate thread could be maintained during each season where interested players and/or managers could register, and then be drafted into a team, or draft a team at the culmination of that current season. Similarly, players in each team should have to re register themselves every season, so that there are no disinterested deadweights in any team.
A final thing to make it interesting, any continuing players should be able to keep their stats through the seasons, which would gradually give a predisposed weighting to the competition, and would present challenges to continue the interest for current players etc.