As mentioned in the gameday thread we create next to fuck all for him to work with. I compared that to the silver service Costa gets from Fabregas, Oscar and Hazard.
Soldado in 12 appearances this season has had 3 or more shots at goal just 4 times (this comes down to a mix of both not being in the right places and shit service).
Costa in 16 appearances has had 3 or more shots at goal 9 times.
It's the same problem Ade faces (3 games with more than 3 shots from 19 appearances). Kane's stats slightly misleading considering 2 of his appearances were against championship sides and Asteras who are quite poor. Without those misleading games even he has only managed 3+ shots at goal in only 4 out of 10 appearances. The supply lines to these strikers is very poor and no matter how awful Soldado or Ade might be let's judge them when they are actually getting chances.