That's not the point he made.
He's saying (I think) that the way Arsenal play always creates chances for their attacking players to get on the scoresheet. The way we play of late significantly hinders the chances of our front players getting on the scoresheet. Of course the better the players we sign the higher likelihood we'll offer more up top but it's not a given he'll replicate his stats here.
I think that's a given but surely buying better players brings greater chance of success?