B teams cannot have more than 3 higher players, the online rosters won't allow them to add.
Did the pickups that the "conference" teams picked up change their classification? And what Conference team picked up players because I personally make the roster changes online for those teams and don't remember making any.
You do understand 'A' teams can pickup players that 'B' teams cannot, just like B teams can pick up players that C teams cannot.
You have given no specifics but generally players can't drop two levels, I believe that's in the rule book.