This pen is a poor return from Knebel away from being an unmitigated disaster. You have 3 known commodities and 1 is coming back from TJ within the year. Either you like these JAGs (just a guy) way too much or you don't value the pen at all. 2 of them in the pen to start the year, maybe. 1 sure. 5? Just cancel the season. To put it bluntly, I really like Perdomo and Andrews. Both lefties, both rack up high K/9 totals. Andrews has shown he can go multiple innings, and he has a decent bat. Devin Williams also looked good in Milwaukee, IMO. Feyerisen and Yardley are interchangable with the likes of Rasmussen, Supak, Roegner, File, Bettinger, Burnes, QTC, Black, Wahl, Faria. Heck, add Zach Brown if he bounces back any. To put it even more bluntly, that list really sucks if its guys who are supposed to be bullpen contributors following a Hader trade in 2020. That is far too many guys with zero mlb track record or marginal at best success in bullpen roles. In fact Hader's greatest value may be not getting traded so anything close to this idea doesnt happen next year. Sprinkle these guys in around Hader in very small doses, sure...but the reason the bullpen shuttle has been pretty successful the past few years is the fact Hader is in the pen to avoid exposing these other arms too much in late game winning situations. That's why I think Hader stays a brewer in 2020 and resumes his most valuable role of late inning shutdown reliever without having to also act as the only closer option. Hoping knebel is able to regain that role or perhaps a new addition.