They do get hired but one guy ain't gonna cause a culture change that has a terrible owner, yes men in the front office, coaches with their own agenda etc. Think of any company and how well departments align with each other and it's the same problem here. And as alluded to, the real key is most likely Hook who can take the analytics, have the right coaching staff, and get buy in from the players. Some orgs like to say they are data driven but the Brewers staff have preached they are data informed, and that kind of blended approach is exceedingly hard to get everyone onboard with unless you have strong leadership setting a proper culture.