In my York City save, season 15/16 I have lost both keepers for 4 and 5 months respectively, not good as I haven't got any spare cash, so had to get one in on loan for 5 months
I personally use the two centre half's as mark tall players, a winger and a fullback on the posts, the other winger on the edge of the area, AMC- stay forward, the other fullback and striker to man mark, and set the two centre midfielders to go back. I have use this to good effect only conceding...
I managed get rid of Obertan and Guitierez which allowed me to get Honda (1.5m), Ince (3.6m) and Balanta from River. Your midfield is fairly strong, use any spare cash to get a right winger, I went for Dossevi (spellings ****. sorry) (1.8m).Keep Santon as his price goes way up after the first...