When the Pittsburgh Pirates acquired Chris Archer, the move represented not a move for just 2018, but for three years following with Archer projecting as a 4.0 win pitcher according to Baseball Prospectus in each of those years. While in name recognition the Pirates gave up a lot of talent, the trade, like almost all, was balanced in the projected value being exchanged.
What the Pirates got was an upgraded arm in the rotation to slot into the number two role of any rotation in baseball, with the caveat that the advanced metrics show that Archer should improve.