It's tough to build a team at Kentucky with kids that stay for 3 or 4 seasons, when as fans 'WE WANT TO WIN NOW'. Those that will be in school that long, are not likely to win a bunch in the first year or two even. Those aren't your 5 star NBA players that can win for you quick. Duke has proved with Zion and Flagg, and Kentucky with all the stars they have had, it is still damn tough to win those titles.
To me, old school is using fundamentals like Stockton and Malone did. Everyone knew what they were going to do with the pick and roll, but if you do it fundamentally, it still works. Izzo teaches good old school fundamentals basketball.