"Power" rankings have a lot to do with external perceptions.
When the power rankings are in the off-season, the teams that are making external-facing moves (splashy coaching hires, getting lots of transfers from the portal, high recruiting rankings, etc) will be ranked higher.
When the power rankings are in-season, they are based more on tangible results (W/L record, style of play, strength of schedule)
Despite the lip service about maintaining their dominant ground-game identity, WI has basically shook the Etch-A-Sketch and started over with big time coaching hires, highly ranked recruits, and hoarding tons of talent from the transfer portal. That stuff will quickly add up to pre-season hype regardless of whether it actually shows up on the field next season.
MN has mostly stayed the course. Large assistant coaching turnover was dealt with by internal promotions and unproven talent (RB coach is still open). We lost a lot of talent to graduation and are filling primarily with in-development "next-guy-up" players. Our recruiting is stable, but not headline grabbing. Our transfers will fill immediate needs, but they are from lower conference teams and won't create buzz.
tldr; MN at 10 out of 14 for a pre-season "buzz" ranking makes sense, but won't predict our performance this season.