What exactly did Ewing do for Georgetown? He won them the title...but they were an Elite 8 team BEFORE he got there, so how is that a great impact?

What exactly did Carmelo do for Syracuse? He won them the title, but they were still a top 20 program...but the title is HUGE because it solidifies HOF coaches career (Thompson and Boeheim)

I argued Lew Alcindor for UCLA

Now the question becomes, what defines impact?