The Carrillo situation was a symptom of a deeper problem, which was that the board weren't facing up the fact that Pellegrino was out of his depth. They didn't want to own their bad manager choice so they threw money into backing him.
In the same way that Carrilllo didn't have the data to justify his signing, neither did Pellegrino have the managerial record to justify his appointment. Board level decision making had gone completely awry