Maybe. But I think had he retired earlier so his name was on the ballot before 1989 he would have gotten in. He was constantly around 20-25% on the ballot during the 90s and when he first came up he was on some absolutely loaded ballots so he never really got a push. Bench and Yaz his first year, followed by Morgan and Palmer in 1990, then Carew, Jenkins and Perry in 91. In 92, Seaver gets in with Rollie Fingers. Six of those were first ballot no-doubt about it HOFers. And Fingers, Jenkins and Perry were all probably better than him. But if he had gotten on the ballot in 1984 or so, it's a bit easier. The first year was Brooks Robinson but the next year Luis Aparicio (6th ballot), Killer (4th), Drysdale (10th) get in. The next year is Lou Brock (1st ballot) and Hoyt Willhem (8th). 1986 was McCovey alone. 87 was Billy Williams (6th) and Catfish Hunter (3rd). Against that group, I think Kaat would have had a lot more support and he was arguably a better pitcher than Willhelm, Hunter and Drysdale.