Perhaps, but how long can you go on past laurels and not current form?
It's true about Benteke winning the headers. But, then, he was the target for most of the forward balls. Kozak doesn't strike me as a forward that plays off the shoulder of a target man - but that is what he was asked to do. If he was the target man for the last 30 mins instead of Benteke, I doubt he would have performed any less.
For a long time. Lambert isn't going to drop Benteke. Even without him playing well he still creates opportunities for other players. leTS face it we were toOTHless without him. I know we beat City but in the other games we had zero threat, Kozak looks better when Benteke plays than when he plays as a lone striker. FACT!