Well...
I find this FM2008 super easy so far. I first started out with one of the preset 442 tactics, which are great; just some minor modifications.
The main problem people get into here, and I have said this before, is when you start fiddling with the Individual Mentalities on your players!
I cannot disagree more with some "super-gurus" here when it comes to that matter. I once read that something from SI where they said 'keep it simple', and trust me, keeping it simple works great.
My team attack and defend as 1!! unit. I keep the Team Mentality dead right in the middle.
Anyways, my flat 442 worked well, the only "hazzle" I had with it, was that I had to change width & and the arrows on wingers when it came to weaker or harder opponents.
With me being super lazy, even that is too much for me :p
So I have just come up with a tactic where I can keep the whole "system" unchanged in every match.
I play MK Dons, and I just beat Nottingham Forest at home 5-1 in the FA Cup (I am in League 2, played 28 league games).
I Won the previos FA Cup match against another Championship team 5-0... I rarely ever have shots against me, and I usually end up with roughly 20 shots on other goal.
Needless to say, I havent yet lost, and I have 11 or 12 wins in a row...
If you ask me, FM2008 seems too easy. Of course I need to play a little more to be sure, since this is my first team in FM2008...
Oh, for the info, the tactic I came up with is a flat 442
Some tips for the premade 442 tactics:
Creative Freedom & Closing Down on 1 for your CD's. That makes wonders. Split the Forward Run on your CM's (One ofthen, other off or mixed). Just keep the rest on default, except for the set pieces and so on.
Good luck!