I gotta give Jeb York a lot of credit. For someone as young as he is, he's demonstrated excellent judgement that's now paying dividends, both on the field and off. He navigated the politics, legal issues with Great America, and financing of the new stadium, the marketing of the team, and the rebuilding of the team. He made mistakes, like promoting Singltary for example, but he was also wiling to cut his losses, by firing him and going big in hiring Harbaugh.
Having said that, I'm also pleased with Mark Davis so far. Time will tell if Reggie and DA are capable or not, but his efforts solicit outside advice, bring in new, respected footballl people from the outside, beef up the front office with people who have the experience needed to instill modern operational processes, and help with the stadium effort are all commendable.