Tyler's hire and push through the program was unequivocally nepotism, he was not qualified in an objective resume sense for the jobs he got, and everybody knows perfectly well there is absolutely zero chance whatsoever the same guy named Tyler Jones gets those jobs. There's no subtlety to any of that, it's not a close call, TU just got pushed directly toward full assistant coach status in the Big Ten the second his playing eligibility expired because his Dad wanted it that way.
But real life does not always operate on the principles of objective qualifications and just desserts. Brad believed in his son, and while fathers have been regularly wrong about that in every line of work throughout human history, Brad was very, very right.
Nepotism is, in the aggregate, a path to mediocrity and unfairness and failure. But there are exceptions to every rule.
Tyler is an extraordinary young basketball mind and we are very lucky to have him. Nobody needs to apologize to anybody for the wrong process having the right result.