My guess is the roster is already down to the 35 man maximum roster size. They typically have exit interviews with all the players after the fall to give them their status. Those who don't make the roster and go their own way or the coach may offer to facilitate them joining a JUCO where they'd have the best opportunity to play with the possibility of coming back at a later time.
I expect it won't be long before they'll be sending out a Diamond Club social notification that got delayed from it's normal time in the fall to spring due to the rain delays in the fall pushing back the fall ball practices and World Series.