I'd agree with @Poison regarding your midfielders being to aggressive in a 4 2 3 1. ... I'd try changing them to a CM(S) and BWM(D). There is, IMO, a good thread called Useful hints and on roles and duties in 4 2 3 1 originated by @Experienced Defender. It's a little old now but is still relevant and you may find it useful.
EDIT: To insert an image in a post save it as a png file and then just drag and drop it into your post.