I said in the post you quoted that many more players are going to test positive. I'm assuming it will spread in a week, but probably to a lesser degree than it would if they were outside the bubble. But the whole idea of playing is that young in shape people have virtually zero risk from the virus. With that in mind, MLB should put nearly all of their efforts in protecting the coaches. I'm a bit concerned that the coaches seem to be interacting with the low risk players more than I'd like to see.