Could be several reasons. The competition got much stiffer. Not as many CPU/cake teams as the season before.
Did you switch up some VA's or EQ? The sim could have changed some and you need to find a new sweet spot for your running style slider. Check with your ST coach and see if he changed positions of your blockers. Hell other team scouts see your newly acquired MVP and are kicking it away from you.
I know their doing it much more to mine this season because of his MVP last season also. However, my guy is in 1st place so far this season to because..... well, He's a badass....