At this point they are just trying to sell everyone off, load up the minor leagues and hoping for a year or two run before they have to sell everyone off again. Rinse and repeat. The only good thing about selling everyone off now is they don't have any bonafide stars to get rid of. They are getting rid of the best players they have who by major league standards are a little above average players. Of course once they go somewhere else, they will probably become well above average.
I basically expect Bell and Taillon to be great in 2021.
Over the past 20 years or so, the Pirates have a reputation of not maximizing the most out the talent they do have. We saw it with the likes of Aramis Ramirez, Jason Schmidt and Jose Bautista, and though Gerrit Cole and Charlie Morton were good with the Pirates, they got considerably better, more consistent once they left.
There is just an overarching incompetence with the organization that starts at the very top.
There are financially limited teams like the Rays, A's and Indians that get much more out of the resources they have than the Pirates.
The new front office is bringing in some interesting young players in these trades, but they'll probably fuck them up somehow.