Goalkeepers in general, ours more so, seem intent at corners to stay rooted to their line, this enables everyone to be crowded in the 6 yard box and goals let in like yesterday, there was a time when the keeper owned the 6yard box, anything in that was his, keepers like grobbelar etc would come for the corner and catch it or punch clear, anyone in the way would get clattered, maybe I'm old fashioned, but I like to see a keeper command the box.