Don't sell Lukaku then - but thats still not the fix.
We are totally unbalanced with or without a number 9 - trying to fit our midfield together is a puzzle within a puzzle, and thats outside of the lack of forward options.
Regardless of who officially makes the signings, Koeman was quite happy with the players we got, and it is in his best interests to work with the current set-up instead of throwing out titbits for the board, media, and fans alike.
Was it not Koeman who played with no width, signed a £45m 'number 10' only to play him left of a front 3, played Sandro central, shoehorned Rooney wide right, and then clogged the midfield with samey players each more narrower then the other. That's not simply going of yesterdays game, but summarizing the plight of our team these past few games.
The whole argument a striker/cb fixes this is once again making excuses when none are required. Having a targetman doesn't fix the lack of movement from the midfield, it doesn't suddenly fix the lack of width/pace that's been stripped from the team, and nor does it fix a defence -as a collective not individuals- that is average at best.
I'm far from qualified to pluck a random team together and say I know what i'm talking about, but having a targetman works if you have players who can run off him and/or a team that plays higher up the pitch allowing the team to build from the front. We have neither.
And I've said all this before but Martinez was never given this much leeway with transfers - regardless what you think of him as a coach he called out in numerous press conferences players/positions he wanted and got none. Was he given the benefit of the doubt? -
http://www.liverpoolecho.co.uk/sport/football/football-news/everton-fan-qa-roberto-martinez-11272823
On a side note if you are really going down the route of 'Koeman wanted' but didn't get then we may as well call this season a dud until January?