Overall View
Completed the season using your tactic with ipswich. 38 games in epl unbeaten. I've got a pretty weak defence so can't help that I will concede quite a number of goals but bent and kadlec will do their job up front to bang in those goals for me so I will get high scoring games esp against good teams like arsenal and man utd (man utd is pretty strong in the game).
Defense
Tend to concede odd goals when the AI counters using the flanks and pump crosses towards the centre. seems to be able to fix that by setting up defensive line as deep though. You will need quick full backs to counter any threats as your wingers/inside forwards won't be back to defend for you. *My defense wasn't that strong either so I guess that was the loophole.
Midfield
If both the deep lying mids push too high up and the ball is lost, It will be opposition vs the 4 remaining defenders and most of the time, you lose when they counter. *My midfielders weren't that strong either so they aren't that decent tactical wise but it still works.
Inside Forwards
As for the two inside forwards, they are the main players somehow as they will dribble, shoot, finish and create chances. So you will need decent ones.
I managed to snap up gordon, shawcross, cattermole, darren bent and alexis sanchez (yeah sunderland bought him and i got him for 10m) on the cheap as sunderland got relegated after my promotion in 2011. Both cattermole and sissoko do a great job destroying but they can't really pass for nuts so i will lose the ball in midfield once in awhile.
Forwards
Kadlec is a good machine and here was my first xi for the season when I won the epl after getting promotion and a huge transfer budget so I snapped up quite a number of good players from sunderland on the cheap when they got relegated.
My overall team
GK - Craig Gordon/Rui Patricio
Def - Rafael/Fabio/Bassong/Shawcross/Wheater/Fazio/Vargas
Mid - Vukojevic/Veloso/Cattermole/Sissoko
Wingers - Douglas Costa/Sanchez//Abate/Bale/Bebe
Fwd - Bent/Agbonlahor/Kadlec/Nistelrooy/Macheda
Some of the players, I got them on loan or 1 year contract (nistelrooy). Surprisingly, tottenham & aston villa were performing quite badly so I snapped up Bale and Agbonlahor during the Jan transfer window.