We stuck with Brasier for years. I think we'll try Kluber in the pen, for a while, even if he looks good in his next start.
Whitlock is going to get more than one start, so this whole, "Let all 6 go one round, and then we'll decide" is likely just something said to keep Kluber's hopes and morale high.
If Houck can fill the 4 slot, we've slowly chipped away at filling 4 slots, one at a time. Things could be falling into place, finally.
It would be great if the 5th slot is filled by Whitlock in the next couple weeks.