Hourihane said in the summer that some players cannot handle the pressure of playing for Villa because of the size of the club. The likes of Liverpool, Chelsea, Man City, Man Utd, Arsenal mostly buy players that are used to pressure but Villa shop i a different market and a lot of their players won't have experienced an atmosphere quite like Villa Park.
Personally, I do think that the home faithful are part of the problem when things aren't quite as we want them to be. But, isn't it like that at other stadiums? Villa fans do not have exclusive rights to moaning and groaning when things go wrong.