Just to share, I played defensive hexa last season, second hisghest goal scored & least goals concedes in my league. Tried that this season & my strikers & wingers seem to miss chances. Switched between the two V formations & worked wonders so I do believe u cant keep using the same formation every season. There's a breaking point unless its a 4-4-2 which personally i think is a lazy formation tho I use it in times of desperation.

Good luck to both of you. Rebound well & onwards