The same way this team got to first place after 135 games into the season despite your season long fearmongering. The bats and defense are not going to disappear overnight.
Just giving Lauer a start yesterday means someone will have one less start right? Every Lauer start will mean a start the other five won't pitch. Unless they plan on making Berrios the odd man out and give him less starts. Personally I prefer Berrios over Bassitt.
Makes no sense to me rolling with six starters. At this pace for the rotation, Bieber will get like 3 starts in the regular season. I would think they would want to maximize his number of starts not minimize them. Especially if he is a rental.