Many on this board have followed the minor leagues and the prospect pages for quite a while. There were times where that portion of the system was far more interesting than the MLB team. Many also remember that the Orioles amazingly went from Cal Ripken Jr. to Jerry Hairston before developing a single every day position player through their system.
There have been many discussions about how you can't field a fully homegrown lineup and be competitive, and while I generally agree with that assessment the Orioles are pretty close to pulling it off:
C - Rutschman
1B - Mountcastle
2B - Holiday
SS - Gunnar
3B - Westburg/Mayo
LF - Hays/Cowser
CF - Mullins
RF - Stowers/Kjerstad
Not trying to push Santander out the door at all, he'll still get a lot of playing time, but it's amazing to think that soon it is very possible that the Orioles will be fielding an entirely homegrown lineup.