Finding matches a little more erratic then previous years;
I find that I'll go through a pre-season creating a tactic, normally get off to a fairly good start to the season where it seems to work well then all of a sudden my players stop being able to tackle, close down opposition, or win headers which results in the opposition walking through my team.
Now I'm willing to go on the basis that I'm at least partly at fault and that maybe I'm not managing the players well enough, but it's not like I'm suddenly putting out teams of 70%/65% fitness/match fitness players or making any serious changes to what has been working up until that point.
Will keep trying, maybe I need slightly bigger changes for different opposition this year, normally I stick to a formation that suits my players and just alter some of the instructions or roles according to home/away/tough opponents, but the transition from winning 6 on the trot in the league (including playing Liverpool and Arsenal) to looking like a pub team trying to cope with Barcelona just seems to happen like a switch, and it can be 3 - 4 games before things start to look any different.
UI on the whole is much better, I'm not sure why but it just seems to flow in a way previous versions never did, a lot more intuitive.