Unfortunately I think you're coming into this topic with only a partial understanding of the facts. When the University President was pushing him to recruit black players, Rupp was ALREADY recruiting black players. The contention was over recruiting token players, something that Rupp refused to do. But Rupp was indeed recruiting bona-fide black players every year at that time, and in fact UK was the first school in the SEC to recruit a black player (Wes Unseld in 1964).
I've mentioned this before but I think people who read about the argument between Rupp and President Oswald not only don't realize this is about tokenism, but they end up giving Oswald entirely too much credit for UK's efforts at the time. First of all, the work of getting UK prepared and pubicly open to integration in their athletic programs was due to Frank Dickey. By the time Oswald arrived on campus, all the preparatory work was done, it was just a matter of getting a recruit to accept a scholarship offer. Oswald claims he made some recruiting trips early in his administration (for example he claims he went to see Unseld as well as Rupp) but that didn't last long. Rupp also mentions in his tape that he was asking Oswald to loosen the academic requirements in order to help get black players accepted by the school, but Oswald didn't provide any help in that regard.
Also, you claim that Oswald was pushing because
"UK was the last school do so". Again if you're talking recruiting, that's absolutely wrong and the opposite of the truth, as UK was the 1st SEC school to recruit a black player. If you mean to sign a black player, that's also wrong. At the time Oswald resigned from UK (March 1968), the only black player in the SEC at the time was Perry Wallace at Vanderbilt. Rupp had actually sign Felix Thruston of Owensboro in 1967 which would have made UK the 2nd team in the SEC with a black player, but Thruston was lost to another school.
If you're interested in this topic, I have a webpage which goes into great detail at:
Adolph Rupp: Fact and Fiction
There's also the Dick Gabriel Video which also has some very good information and interviews from people who were there.
Adolph Rupp - Myth, Legend & Fact