Saw this on Twitter yesterday regarding the origins of the current Twins pitchers, and I think it raises some interesting questions.
No Major League team can sustain this level of external acquisitions in building a pitching staff. Just last year they shipped off Hajjar, Povich, Encarnacion-Strand, Steer, and others to get Mahle and J. Lopez, and this year it took Arraez to bring in P. Lopez. Brusdar Graterol was exchanged for Maeda, Chase Petty for Gray, and so on. Of course there is a flip side to this, as the Twins have turned Eduardo Escobar into Duran and Ryan Pressly into Celestino and Alcala during years in which the big league club was not competing. Lately there have been calls to make a move for Corbin Burnes, which would certainly decimate the top of the Twins' prospect pool.
To me, the larger issue that we have put a net drain on the farm system to build the rotation, and to a lesser extent the bullpen. The Twins' struggles in developing high-end starters are well-known -- that's why it's so exciting when guys like Prielipp and Raya enter the fray. Ober, Varland, Woods-Richardson, Winder, and Balazovic all have varying levels of starter upside, but none of them will ever carry a rotation.
My question is, when (if ever) will the Twins be able to rely more on homegrown pitching talent? What has to change for that to happen? Scouting? Coaching? Better luck in prospect development? In my mind, a true ace or two is the last missing piece, but I'm wondering where it will come from, and at what cost.