Also you need around 10 SPs on your 40 man, if we move Bieber, Civale/Quan and Plesac, who are our 10?
So what was once our strength can quickly become our weakness? It is an argument that they got to back fill this system quickly (push up our Lake County crew). And, you are also assuming that we get no one in return - which is part of the reason, you need to trade Bieber (to kill 2 birds with 1 stone and get prospects when you can - if his trade value goes up).
Top 5 - Bieber, McK, Bibee, Allen, Williams (you just don't hold good talent back too long)
Next 5 - Curry, Morris, Cantillo, Gaddis, Battenfield, Burns, Leftwich, Carver, Stanley , Nikhazy, Mace (sb nearer to top these last 3 but are struggling)
There is plenty of depth even if you combine a few of the injuries, as I left of Espino for 12 month recovery and Campbell. I am worried that we have heard nothing on Morris and he hasn't started a rehab assignment even (in 30-day window). So I get some of your argument but they need to start pushing that 2021 draft group as most will need roster protection after next year anyways which includes Webb who could have been close to 1st rounder. And, if we are trading (2-3) the kit and kaboodle (to tank season), no one will complain about a Touki for a few starts to bridge the gap in case of injuries.