If you're a team that is tipped for relegation, then there is basically no way you'll survive without wingers....
I've tried various narrow tactics with Cardiff, and I constantly lose.... I know play with a simple 4-4-2 and I've been winning games and have picked myself up from relegation.
Try using some of your full-backs as wingers, most of the time they can do that.
Also, some strikers can play as an attacking midfielder....
Just try experimenting with other players, or if you need to, go into your reserves...
Finally, if you really really really want to keep it narrow.... Make sure you have immensly fast full-backs.... In the Premiership, the wings are all about pace.