Remember, as with anything concerning scouting, how much you budget is a factor, plus a random element. It's entirely possible you might not see any new players on the last day of the season, also possible that you could have two or three pop up. Same goes for the other owners.
I know that I've won at least a handful of IFAs at the very end of the season, and I've been sure that other owners had to have had more money than I did but did not see them.