Benteke and Batshuayi may have been better appreciated in an earlier era when 4_4-2 was the norm ànd teams tried to get the ball to the strikers as quickly as possible.
In a similar vein to the way we used to utilise Bright and Wright.
Occasionally I used to visit the old training ground at Mitcham and many of the drills were exclusively on providing crosses to them.
You may remember Neil Redfearn who was a decent footballer with a very good shot.
I once asked him why he didn't have more shots on goal. He said he wasn't allowed as he was instructed to always hit Bright and Wright when in an attacking position.
The build up is much slower now and strikers are expected to be the first line of defence.

Trouble is Kouyate hasnt been able to do that due to been used as a CB, especially end of last season & all this.

Only if that is what the system is setup to do.

Wilf doesn't track back at all hes very lazy now watch him spends more time walking around and when you do see him back their its due to reasons like defending a corner etc.

This is Roy system it isn't a bad system if you are playing against big teams away but for everyone else its terrible which is why you keep seeing our home form plus the teams below mid table we don't look great against. (top managers adapt Roy has never been able to do this he got away with it in the past because of the talent he had but even then that can only take you so far)

Look at his record it sums him up same pattern smaller teams he doesn't know how to play against.