Told you often enough: I was told from a very good source in the club that it was not a Martinez purchase. I never claim to be ITK not ever. Take it or leave it, it was just a one off bit of info I received, but that's why I remain 100% convinced Niasse was not down to him.
All others I have no doubt..including Kone!
So, as said: any signing made under Koeman is his. The buck always stops with the manager. He's got a very mixed record of decent and trash so far. I suggest he spends the Lukaku windfall a bit more wisely than he's spent the Stones windfall.