He is more of a second striker and less of a midfielder and he needs to play centrally. He won´t give the team control, if they struggle. Rodgers has to play him behind Benteke, but the problem is, that Coutinho has to play in that area as well and non of those three players really shines out wide. It makes the whole attack very narrow and the full-backs won´t be able to make up for that against the better teams of the league. So Rodgers has use one out wide, where he is a lot less efficient or he has to field Ibe additionally, which is pretty crazy gung-ho. All that get worse, because they don´t have a quality DM, who can anchor the midfield by himself. So to make sure, that the midfield is not getting overrun he has to field 3 midfielders, which limits his options in the attack. I wouldn´t be surprised if Rodgers swaps frequently between a 451 (using players out of position), a narrow diamond (won´t work without Sturridge), a gung-ho 424 and even going back to a back3. Non of it will really work so he´ll cycle between those things.
Each transfer by itself could have made sense, but they ended up with an unbalanced squad.