Actually think Carr is the very least of the problems we have. The 5-1 showed what 'his' players can do with the right motivation (i.e. management).
I think for a head scout he's actually done pretty well, all clubs have signings that flop and more often not we've done well, with obvious exceptions like Cabella (who we only signed because Kinnear undersold Cabaye) and Thauvin.