Good rundown and that's what I get for making a quick comment without doing more research.
Still, I think their system is pretty good at identifying these guys cheaply, and I think that's why they stated away from trading for a big arm this offseason. While I think this system works for you back half of your bullpen, I'm not sure it's great at finding the top half. That half they need to pay for. As much as I like Cano and Coulombe, I'd be more comfortable with them in the 6th or 7th then the 8th if possible.
The 2014 bullpen was absolutely a monster and the tail end with O'Day, Miller and Britton to end things. Games were over for the Orioles if they had a lead going into the 7th inning and those guys were all available.