Those guys listed aren't anything special, IMO. I like several of them, they just aren't unique talents as a group. I wouldn't call them nothing, but I do think it's fair to say Duquette did nothing novel to acquire them and that nearly every team has a similar crop of youngish talent.
Which is different than nothing.
GRod is a top10 RHSP. Hall is a top 10 LHSP. Mountcastle is a top 4 1B.
They've got a decent group of upper level pitching, actually more bodies than they can reasonably assess in the Majors.
They have a number of other guys that are worth considering. Dan wasn't in charge of the mid-'18 sell off.
Dan did a couple things well but I think he was generally bad at his job and literally tanked his effort even before we knew he was going to Toronto. He was, I'd guess, intentionally poor in 2015. By 2017 started to realize that he might want a paycheck and started sucking up to the inner circle again.
I think, in terms of acquiring Talent, he did a generally poor job, at times intentionally so and wound up deferring to Brady/John/Lou....but we still have a group of players, including guys like Nunez and Santander that some people think is building a 75-81 win team in 2021, with only new additions from the waiver wire.
The Orioles had a lot of success from 2012-2016 that had little to do with some Talent acquisition plan.
They could have done more on 'Now' the Talent front.
They did very little in most avenues of MiL Talent....yet the core of that group is still in the top 15 (better when you include the failure of the 2018 season).
Without being good at Now or Later Talent acquisition, they were able to produce good Now results and decent Later results.
Imagine if they were any good at either end....or Heaven forbid, both.