In FM12 everything that determines a game is over-exaggerated. For example, if your team are on a bad run of form, no matter what team you are, it's so hard to return to winning, whereas Barca or Man U etc will bounce back immediately. The same follows for player's form and morale, especially strikers. If they're in bad form they don't score for months, good form they're scoring 3 per game. I know this can happen(cough*torres, carroll) but so often i have a player banging them in from everywhere and then they won't score for the next 3 months. Also team talks determine the result far too much, nail the team talk and you win 5-0, mess it up and you lose 5-0, the same with squad morale. FM13 should be a bit more lenient please with those features.
Also I dont really see the point in match preparation. I put defending set pieces up to very high for Match Prep. and I lost 5-2, 3 0f which were from set-pieces, I'm not criticising it, but why have it if it doesn't have hardly any influence? In FM13 either make it more influential or scrap it. Finally is the match engine. Why is it that I miss 30 chances a game, the AI miss 2 but the score ends 2-2 or worse, every game. I'm aware that this can happen(Chelsea v Barca) but not every single match! and the way the strikers miss, the amount of one v ones or the 30 yard wide shot, make it realistic!