I do agree that he has no official title there..but can you at least agree that he has a significant influence on the decision making at Valencia considering his business relationship with Lim..remember that the Valencia manager is also a friend of Mendes, and that appointment was a controversial decision at the time..although it has proven a success with time..then there is the transfer of that brazillian teen to Valencia which eventually fell through, which was taking place while the president was concluding a deal with a different player..which appears to be the straw that broke the camels back with the president..My point is that Mendes has a lot of influence there, which is in direct conflict with getting the best deal for his client( A lower fee is better for Otamendi due to higher wages he can get)