But we wouldn't be strengthening. We would be rebalancing the squad away from one star striker to a lot of decent players. The end result will probably be about the same in terms of league position.
To improve we need to spend money. There's no getting away from that.
I don't think people realise how hard it will be replacing Lukaku's goals and assists.
Lukaku scored what, 25 league goals last year, which is a good return. Trouble is, we never scored enough from elsewhere, so by bringing in a goalscoring midfielder in Klaasen (granted, still has lots to prove in the EPL) we start to eat into that, and he's not even a striker.
I like Lukau, he's one of the best strikers we've had in decades, but he's by no means irreplaceable. there are plenty of ways to replace his goals, and one of those is spreading them across the team, which, as a bonus puts the squad in a much stronger position and less susceptible to freak injuries. If we lose Lukakus 25 goals ( don't forget 4 of these were against one team), but get in a midfielder who can add 7-8 extra goals from the centre, then all of a sudden we're only looking for 17-18 from a striker, which while still a big target for an individual is less daunting and seems like a realistic total for many, available players.
I think, and its only my opinion, that many people are looking at the position, rather than the team as a whole. Where would we of been had Lukaku got injured last year?
Koeman might have a plan to play in a different way, potentially, and it seems like it to me he is looking at playing similar to how Southampton played under him, hit the wings, get the ball across, have a midfielder there to mop up (Klaasen) and a big lad upfront who'll get his head on it (Giroud rumours). Get a second striker (Sandro) to deal with through balls and to buzz around the feet of the target man. Would Lukaku fit into that style? I'm not so sure. Lukaku likes the ball in front of him to power past defenders and run with it. He's not so great at hold up play, or running on to the ball in the box.
I'd still rather have Lukaku here cause he scores goals, but not at any cost, and I genuinely feel that we will finish this window stronger than the last, and the next one stronger than this. Progression is the aim, not net spend figures