I'd be tempted to try a diamond:
--------------------Johnstone------------------
Hutton-----Chester-------Elphick-------Taylor
---------------------Jedinak------------------
--------Hourihane-----------Bjarnason---
---------------------Lansbury----------------
----------------Hogan----Kodjia-------------
Lacking width, would be better having Bree or Amavi providing some, but you have a runner beside Hourihane and Lansbury can actually play the advanced role he was good at for Forest, hopefully he can get Shelvey sent off again aswell.