Oh, Aaron Harrison has a lot to do with it.
Harrison hit another game-winning 3-pointer - his third in as many games - to beat Wisconsin. His dagger with 5.7 seconds to play helped atone for his twin brother's gaff of fouling a 3-point shooter that allowed Wisconsin to take a 73-71 lead in the waning seconds.
What's amazing is Kentucky is getting here, in all reality, riding its offense. It's NCAA Tournament offensive efficiency is around 1.17 PPP; it's opponents are at 1.11 PPP. This makes for truly exciting games but it leads you to believe the Wildcats could be susceptible to a team with ferocious defensive prowess. Of course, Wichita State and Louisville were those types of teams and Kentucky marched on.
Here's the Defensive Score Sheet from Kentucky's win over Wisconsin, giving Big Blue Nation a chance at title No. 9:
For reference, here's Kentucky's Defensive Score Sheet from it's Elite Eight win over Michigan.