It’s a lazy statement thrown out there by our more entitled fans, who seem to think negotiation is nothing more than asking a selling club how much money they want - and then paying it immediately.
There are plenty of examples over the years of Txiki negotiating very good deals with no RC - Phillips this very summer would be a great example - or convincing clubs to accept less than the RC, of which Dias is a recent example.
The fact is he walks away from deals which fans have got themselves very invested in, and that causes frustration - so they lash out and claim he’s incapable of closing a deal.