Why would you bring up prospects before they are ready?
Rafaela and Abreu are already up. The other guys in the Top 30 in WOO (Fernandez, Valdez, Drohan, Mata) aren't going to move the needle. We've already seen what Valdez can and can't do. Mata is injured. Fernandez is just a bullpen arm. Drohan isn't pitching all that well in AAA and is probably not ready for MLB.
Late in '24, we could see Wikelman, Guerrero, Hickey and Yorke, but these guys aren't on the 40 man and are still in AA.