At no point will the system block you from making roster changes because you have green flags in the minors. That only happens with active players on the IR list AND we implemented a one roster period grace period for that to avoid pointless headaches from last minute activations (which may have also effected the offseason too since that counts as a single roster period).
So unlike the red flag situation, the green flag situation needs to be monitored manually but as someone else mentionned, it sounds like there are enough keen owners that we can expect this to get policed through the ancient art of tattling.
Of more urgency is the schedule situation. MikeM message me about it the other day but I promptly forgot all about it because I don't really have the luxury to devote much attention to it as this point. It's not a very hard process at all using my scheduling matrix. If someone wants to step up as a volunteer and DM me about it that would be much appreciated. Maybe at some point this season, I'll automate the process in Excel so that we can have pre-built schedules in perpetuity but I didn't think of it soon enough to get something done for this year.