I like this exercise a lot, Lar. Going back to your data, I looked at those '57, '59, and '66 seasons where HOFers swept the awards, and thought about awarding a second Cy Young and seeing what would happen.
1957: I gotta think the AL award goes to Jim Bunning, who led the league in IP, tied for the lead in Wins, 2nd in strikeouts, and 3rd in ERA in his first big season. That would give you a clean sweep.1959: This year probably comes down to one of three guys in the NL. Warren Spahn led the league in IP (292), tied for the lead in wins, and finished 3rd in ERA. But Sad Sam Jones also pitched 270 innings that year, winning the same number, and won the ERA crown outright while finishing 2nd in strikeouts. Finally, Elroy Face won 18 games out of the bullpen, against just 1 loss, and finished 7th in the MVP race. So it's not clear that you'd get a sweep there.
1966: This is, by far, the most interesting (to me anyway), as the AL winner almost certainly would have been Jimmie Kaat of the Twins. Kittie threw 304 innings in 41 starts that year (both led the league), and won 25 games (five more than runner-up Denny McLain). He also was 6th in the AL in ERA. Gary Peters, of the White Sox, finished with an ERA under 2.00, but only won 12 games and pitched a third fewer innings. On its surface, this doesn't seem to get you your sweep; but I've got to wonder if having a Cy Young award in his cabinet would have put Kaat over the top with the voters.Thoughts? Feel free to vote in the poll at the right.