Sturridge wasn't the focal point of the Liverpool side... But he was certainly their most advanced striker. Suarez did everything but he wasn't their furthest guy up front, the one that would be on the end of most chances. That was Sturridge. Also, don't forget Liverpool played very expansive football, and basically disregarded defending. Our team will be a bit more balanced so Costa won't have as many chances as Sturridge did. Hopefully Costa will behave for the team in a similar way though - we want most of our chances to fall to him.