I think we'll learn a lot more about that in the next seven months. The Brewers had several enticing arms in the lower minors but that's a long road to MLB, much less success in MLB.
My biggest question about the team over the past two-ish years has ultimately been "okay, they created a pitching goliath once, now can they do it again?"
The Magic Eight Ball says "Reply Hazy, Try Again Later".