This seems like a fairly pointless study to me. But assuming there is any relevance, isn't it a bigger issue for a vendor to be dropping significantly in terms of %, rather than dropping their position in a list. Look at HPE for example, barely drops in terms of % yet is highlighted because it slips down the list? EMC are still leading but have a much larger proportional drop. To me that's a bigger issue. Although will add that I think this whole study is a bit of a nonsense.