So, Levy selling a physically diminished midfielder in January, who by his own admission was no longer able to play in the PL, was being grossly negligent?
I am a huge Mousa Dembele fan, but the clear fact was that he was no longer fit to play at this level and his attempts to do so late last season and early this showed that. And yes, Pochettino clearly sanctioned that sale. They tried to do it last January as well.
Also, by the admissions of Aston Villa, Frenkie de Jong, and Olympic Lyonnais, we'd been trying pretty hard to replace our aging midfield. And for various reasons, all 3 of these deals didn't happen. We didn't panic, Pochettino didn't want anyone else, and Levy didn't force any players on the manager. Yet, this was negligence?
Look boys and girls, if you think that football is like FIFA, you need to stop watching. We had a plan, but it didn't pan out. That can happen. Not sure how it is Daniel Levy's fault that Frenkie de Jong felt such personal loyalty to Ajax and he didn't want to leave, or that Aston Villa got bought by new ownership? In the real world, in complicated situations (and a transfer window is emphatically that), plans don't always happen, and there is nothing you can do about it.