"It was keewartson's first pro season in short season A, and the roster constantly was changing. Some players coming from the Full A or AA season teams, some from the rookie team, and one due to a trade. Which means some players leave: going up, down or out."
The Astros full season A team that just won the Midwest league title had 115 player transactions. ( I didn't count them, I saw it on a tweet) There was a constant shuffle between all of the levels, and the dreaded ''released". Probably one of the main reasons very few minor league teams have names on the back of jersey's.