I’m going to say that I don’t believe that getting a good key forward would make much difference to our current woes - not without massive changes to the way we play the game and to our skill set.
Firstly, we don’t have a forward coach who can effectively teach leading patterns, and proper forward skills - either that or our players are too dumb to follow instructions. (I have never seen a forward line as stagnant and crowded as ours often is - or as many players flying for a mark at any one time, - or so few players roving the packs for the inevitable spills).
Secondly, we don’t seem to have the skills in our midfield to hit leading targets, even if our forwards did offer leads, nor the nous to move the ball quickly forward so that the opposition don’t have the time to flood our forward line.
Fix these issues first, then we might find that our current forwards might actually be all we need. Until we do, a new key forward would simply be a waste of money. We had a great forward recently in Jessie Hogan, and we wasted his ability with our our game plan (or lack there of) and our inability to hit his leads.
I think it all boils down to coaching - and, on evidence so far, we are failing badly at this.