It's pretty likely that Cronenworth valuations would be all over the board and he's probably fits in the "beauty in the eye of the beholder" department.

A year ago at this time he was a 25-year old that was #15 in the Padres system (Baseball America Handbook). That's a role-player type prospect and on my board is roughly a 5.5 million prospect surplus value type.

So he gets his chance last year and posts a 1.6 bWAR and 1.4 fWAR in a 60 game season. So pro-rate that out to a full season and he was a 4 WAR player. Obviously if that continues he's likely a 100+ million dollar surplus value type player. Now he only had 192 plate appearances, so is he just a flash-in-the-pan of the next Jeff McNeil? Steamer is projecting him as a 2.2 WAR player in 2020.

I'd guess that, on average, valuations would put him as being good for something like 8.5 WAR over the next 5 years. If so, that probably puts his surplus value in the 55-60 million dollar range. I'd put Hader in the 30-35 million range so personally I doubt if Cronenworth could be had in Hader deal.

The other thing that makes me think that the Padres would not deal Cronenworth is the depth chart. They have Tatis at short, Machado at third, Hosmer at first, but really nobody to fill the hole at second if Cronenworth is traded. The backup infielders are Jorge Mateo, catcher Austin Nola (who could fill-in at second but is unlikely to be a primary option) and Tucupita Marcano who is on the 40-man but has not played above A ball. Mateo OPS'ed .454 in very limited MLB action last year and came up through the ranks as a plus-plus speed guy with questions regarding almost every other aspect of his game. Mateo could be a pretty good player down the road but he doesn't strike me as a guy a contender would just want to stick in there and sink-or-swim with.