Again. You confuse the great results of Memphis with the great results of Kentucky. There’s a huge gap between those “great results.”
There really isn't a big gap. Well, except that he arguable never had a stretch at Memphis with results as mediocre as his last three years at UK.
He had very similar winning percentages and conference winning percentages - 2% better overall at Kentucky, 4.5% better in conference at Memphis. His ceiling at Kentucky has been one extra tournament round than he won at Memphis (although using the Lon Kruger logic, he obviously had built a juggernaut at Memphis was likely to have won a title there if he'd stayed; he was literally one point away).
Ignoring the programs he inherited at each place, he won about 1.6 tourney games per year at mid-major Memphis, and about 2.3 tourney games per year at blue blood Kentucky. Pretty comparable. Certainly notably more comparable than the results of Brad Underwood and Bobby Hurley.