Yes, they did. And some pitchers could take it and some couldn't. Pens were built and prioritized completely differently. The Cubs had like 3 relievers you would maybe be sort of comfortable getting the ball to. Looking back, who would you rather pitch the 7th, Prior or Guthrie, Mulholland, Alfonseca? So you needed 7 from your starters, or 6 at least. Interesting how Zambrano didnt break. He pitched more innings than all of them. And went on to be the most durable pitcher in the majors for half a decade after.
For anyone to suggest Baker ruined Wood is a joke. Wood blew out his arm at 20 and was on the DL more than he was available. You needed to ride him when he was on because he was one pitch from it all coming to an end damn near every year he was a starter.
Prior was destined to break and his demise was hastened by 2 brutal fluke injuries. Dusty did what every damn manager did back then. He did the same thing to Russ Ortiz and he never broke. Its all a false narrative IMO.