BaP - is there a script?

Honest question. Because sometimes it seems like there's a narrative or script that the game follows to make it either incredibly difficult, fair, or easy. Is there a behind-the-scenes difficulty rating that spikes/wanes throughout the season? 

I mean, it's not the worst idea if so. Every team goes through highs and lows. It's just a little strange when I'm gunning for the president's trophy and beating top teams, energy levels are maxed out...then out of nowhere a bottom 5 team will beat me 6-0 with 80-overall players dancing around completely untouchable with some backup goalie making ludicrous saves on a wide open net...while my team suddenly can't string together two passes in a row.

If this mechanic does exist, it would probably be a little less frustrating if it was made visible. Like a hot/cold streak rating or something. 

If there is no such mechanic/script, then there's just a massive inconsistency with the difficult/skill ratings.