Ok, so three points for me:
1) The loss and failure to replace Souttar with a defensive leader impacted us more than anything else, in my view. Its not a criticism of Robinson or Anel so much as Souttar gave us a lot of leadership in the defence. I don't actually think he was that good as a player, i thought he got turned too easily, at times, especially on the break, but he provided a lot of leadership.
2) I don't disagree that we lacked goals, but i don't think the players up top are the issue, but rather the balls into the strikers. The answer has often been to throw more strikers on, rather than address the creativity issue. I think that has cost us.
3) Osula was not the player for this season. He may have weighed in with some goals, but i don't think he'd have made enough of a difference this season in those games where we needed goals - QPR (H), Hull (H), Oxford (A), Millwall (H) and Plymouth (A) have been the games where i think we've lost it. In each of those games we've ended up offering nothing in the final third when it mattered. I don't think we've had clear cut chances where you'd say a more prolific striker would make the difference, its been behind the strikers