That could be argued, but at the same time, this spending was done after EtH himself fancied such a role, asked to sign players he wanted/coached, and was not willing to work with Rangnick, whom in theory should have helped him in that role.
While I think that he fecked up, the bulk of criticism there should go for Arnold and Murtough who abdicated their responsibilities. The moment EtH asked to be in charge of transfers (and he asked based in the reports of the interview back then), was the moment he should have been thanked for the interview and removed from the candidate pool.
The thing with pro-EtH arguments is that one could construct a very similar line of argumentation in favor of Murtough:
1. By all accounts he was successful in all the jobs before being DoF at United.
2. We should have waited until Berrada starts and let him evaluate the existing DoF first and whether he needs to be replaced.
3. If we say that EtH is worth keeping then Murtough‘s key decision (hiring EtH) cannot be judged yet.
4. Yes he may have screwed the responsibilities on recruitment side, but that is more on Arnold who should not have allowed him to do so.
5. We should have seen how Murtough works with having a world class head of recruitment and chief scout before judging him.
6. The inflated fees are not his fault, if the club does not need the money and the player is not ready to strike and push for a move - you are not negotiating a low fee even if you are the best negotiator in the world.
7. We were 3rd and won a cup last season after a transfer window where he played a key role, and the signings contributed to our season greatly. If EtH gets so much credit for that season so should Murtough
8. If EtH relies on medical staff assessments and they are to blame but not him, then same with Murtough who relies on other people in assessments of transfer targets, and if they screw up he is not to blame. He is just doing his best to sign the players other people identified.
9. He is not to blame for the incompetence of Woodword and Arnold above him, and below him nobody could have predicted that EtH would struggle to such an extent, the injuries etc etc etc
10. it is also quite challenging to get a new better DoF as we see with Ashworth.
and so on. Yet everyone knows that most of those arguments don’t hold water and Murtough was not good enough and rightfully replaced.