are you constantly swapping players around or buying loads of players and putting them straight into the first team? or even tweaking tactics a lot? all these will have an effect.. with your training schedule you want to turn match prep down to 10-20 percent, then for the first week have the general training on fitness until your first team and subs are at least match fit, then swap the general training to tactics and very high with the match prep on team work/cohesion. Also, play styles that are not native to a set of players will take longer to settle into, for example, if you have squad of english folk, getting them to play the Brazilian flair and creativity game will take some getting used to.