Slightly unfair to say it's Divock's fault he isn't getting many chances, I do believe you have a slight point, against spurs in klopp's first match he hardly had anything to go at either. But I wouldn't prove the point by using benteke as an example, as it's not the best example, due to palace tiring at the end of the game, and one of benteke's chances coming from a set piece, so that's down to the delivery as much as positioning.
I agree though, I don't think Origi is going to be liverpool's main striker in future, as I don't think he'll progress quickly enough, hence I tried to name volland, as he would grow quicker and hopefully make an impact we desperately need to rejuvenate our strike.
He just seems very raw and doesn't seem that instinctive. It's like he's got the attributes to be a top player but doesn't know how to use them.