See on Becher  and various other pieces of original research on the Web. It seems likely to me that Becher had plenty of local recognition as a military leader, but no status in the eyes of London. There is further Pollard's suggestion that Thomond took over from 1605. More likely Brouncker had the nominal title, but had made such a bad job of the position that he had little power on the ground. The article should reflect the reliable sources, naturally.