LOUISVILLE, Ky. — The NCAA accused Louisville of four serious violations and criticized the conduct of Coach Rick Pitino for failing to monitor a former basketball staffer who hired escorts and strippers for sex parties with recruits and players.

The governing body’s report Thursday did not mention a lack of institutional control, considered the most serious violation in some cases.

Pitino disputed the finding that he didn’t monitor Andre McGee, saying his tendency is to overmonitor. If anything, the coach said he was guilty of trusting someone to tell him what was going on.

“(McGee) made a mistake and we apologize for his mistakes,” he said. Pitino has denied knowledge of the alleged violations.

The NCAA’s letter is the first step in a process that could extend into next spring. Louisville has 90 days to respond.

The letter culminates an inquiry that began with the publication last October of Katina Powell’s book, “Breaking Cardinal Rules: Basketball and the Escort Queen.”

Powell wrote that McGee paid her $10,000 for strippers to perform 22 shows from 2010-14 – a period that includes Louisville’s NCAA 2012-13 championship season – with many occurring in the players’ Billy Minardi Hall dorm. The building is named for Pitino’s brother-in-law, who died in the Sept. 11, 2001, terrorist attacks in New York.

The NCAA’s letter lists the value of the impermissible/extra benefits as at least $5,400.

Louisville has imposed its own penalties. The most severe one was announced Feb. 5 – a postseason ban after the school determined violations occurred. A month later the school announced the reduction of two scholarships and the number of days staffers could recruit.

Neville Pinto, the university’s acting president, and Athletic Director Tom Jurich said the NCAA’s findings align with the results of the school’s investigation.