Frank had at least one in every class, IIRC. oscar is on pace to have 0% of his classes have a top 150 player in them.
Recruiting rankings are a poor indicator of success. Come on. Weber landed 15-20 top-150 guys from 2003-2012. Hell, he had seven (7) 4* recruits in his last 2 classes, alone. You've got to fill needs and you've gotta get the "right fit," as they say.
To your point on Frank, I think he had a handful of top-150 guys. Wally, McGruder, Nino?, Gip, Upshaw. The problem, of course, is that these ratings can be kind of a crap shoot when you get out of the top 50. I mean, Angel is not a Top 150, but Nino and Gip are??? Nino and Gip are, frankly, very average basketball players.