Need help with my away form - especially agianst big teams!!

I'm currently playing as Manchester United, in my first season, my home form is pretty good (save a defeat to Manchester City!), but my away form isnt great.
I find myself looking at my calendar and getting all bent out of shape when i have an away game at Arsenal.
I've tried looking at the scouting report and using shouts to tailor my tactics to the situation - failed!
I've tried developing a second tactic where i have more men behind the ball - failed!

What i want to know is, what are the key things to look out for/remember when playing away from home?

If anyone requires screenshots of my tactics in order to help, please let me know

Thanks