I really wasn't, and though virtually all my research begins with the Integration Era, I was thinking more of the faces and bodies on my baseball cards when I was a kid. Most weren't porkers, just not quite the physical specimens that tower over modern mounds and often get drafted for their dimensions.
Back in 1974, for example, the Top 10 in Complete Games had nine men with 20 or more CG. But to Bell's point, they were all staff aces, which is how it should be -- if a guy was mowing 'em down, a manager let him finish (cough, Nate Snell). From that '74 list, only one had his career cut short via injury: Busby, he of two no-hitters.
CG Leaders, 1974: Jenkins 29, GPerry 28, Lolich 27, Ryan 26, Tiant 25, Hunter 23, Wood 22, Busby 20, Cuellar 20, Blyleven 19.
Most were also in the Top 10 in Innings Pitched, all pushing 300 IP...
IP Leaders 1974: Ryan 332, Jenkins 328, GPerry 322, Wood 320, Hunter 318, Tiant 311, Lolich 308, PNiekro 302, Grimsley 292, Busby 292, Messersmith 292.
Extending it to 200 IP -- ERod's goal he reached for the first time in 2019 -- in '74, the number of hurlers throwing a minimum of 200 frames was 65. In '19 there were 15.
1974 was also the third year in a row Oakland won the World Series with ace reliever Rollie Fingers pitching the fourth-most innings in those postseasons, behind the A's top three starters. Just tying this back into the multiple-inning bullpen guy discussion...