I agree an LB and Winger/wingforward are a must since we need quality in both positions for sure. But how isnt a quality CF not something we quite assuredly need too? We need a game changer, and someone who consistently finishes their chances is defenitely something we need. Wether that player is 2nd forward (or in overall more complete/dynamic forward) or a box striker like Dzeko doesnt matter to me, but upgrading on Matri is defenitely something we need too.
In general this seasons weakness has obviously been not having someone that can consistently finish off games, and thats why we have so many draws, and we miss someone like Trezeguet so much, scrappy run of the mill games where we used to get the win with him, we have been gotten more draws in because we miss those clear opportunities on goal so much this season.