If it's the March 1st report, here's what I believe what's happening...
Sept. 1st is Roster Expansion. If you call anyone up from your MiL system to your main roster during this time, they stay on your main roster until Opening Day of the following season. Therefor, if you call people up to the main roster for roster expansion, the AI will call up players to fill out your MiL rosters to compensate. Everyone on your 40 man roster is automatically called up to the main roster for Spring Training, as well.
I'm guessing you're seeing a lot of those red arrows on your Short A/Single A/Advanced A teams. If so, it's because players were moved up from those to fill out your AA and AAA teams after you called up players for roster expansion and Spring Training... and to replace the players called up to AA and AAA from your Single A teams, the AI calls up guys from your rookie teams to fill out your Single A rosters. Therefor, most of these guys called up will be "overmatched" in Single A...
But... once you demote guys from your Spring Training roster back to your AA and AAA teams, the AI will demote players back to your rookie teams.
Bottom line... don't worry about red arrows until the AI fills out your MiL system after setting your 25 man roster for Opening Day. If you're still seeing a ton of red arrows after setting your 25 man roster on Opening Day, then you may have an issue of not enough MiL "fillers".
Oh, and "just shut up and get back to work"
