Since Kirilloff and the college hitters look like sure MLB regulars, it will all depend on how the pitching prospects turn out. If 2 of Duran, Balazovic, Canterino, and Winder hit, the team will be fine. What's more of a hot take however: they may need to trade Berrios after the 2021 season. If you want to extend windows you need to maximize return on everybody, so if Berrios doesn't sign an extension with the team and they're not ready to give him $100 million after 2022, they should trade him to maximize return. That would hurt a whole lot less if Duran proves himself this season.