What was the last team to have four 20-game winners in the same year, in the same rotation?

Jim Palmer, Dave McNally, Mike Cuellar, and Pat Dobson gave the ‘71 Orioles four 20-game winners in a single rotation. The Orioles of that era did a lot of dominating the regular season with their rotation, then disappointing in the playoffs. The '90s Braves then ripped off that idea.

Asked by Kevin McCaffrey · Last updated 5 years ago · 588 views · SOURCE