The 2018 rotation and starter depth reached a point where they felt the need to trade for Eovaldi, at the deadline.
The starting 5 was meant to be: Sale, Price, Porcello, ERod and Pomeranz
The depth, before Nate, was Brian Johnson, Steven Wright and Hector Velazquez. William Cuevas and Jalen Beeks each started a game. Beeks was traded for Nate. Pretty good depth, but I like the depth we have, now more, and it certainly looks deeper if not higher quality- for what that is worth.
2019 saw the same starting 5 back, although with much worse numbers, and Nate only started 12 games. The depth was Velazquez, Johnson, Cashner and Weber/Lakins. Yuck!
2020 was a yuck of a rotation and depth, especially since Sale and ERod missed the whole short season. The 5: Nate, Perez, Godley, Mazza, Weber. The depth was Houck, Brewer, Hart, Kickham, Triggs and the deadline acquired Pivetta.
2021 was supposed to include Sale for more than 9 GSd with Nate, ERod, Perez, Richards and Pivetta. That's actually a nice 6, if healthy. The depth was a capable Houck, but then Peacock, Seabold and Crawford. I like this year's depth more.
2022's rotation was not thought to be all that great in March. Adding Wacha and Hill did not wow anyone, but they both did pretty well. Again, Sale was supposed to give us a half season and maybe Paxton, too. Neither did. The expected 5: Nate, Wacha, Hill, Pivetta and Sale/Paxton. The depth was Crawford, Whitlock. Houck, Winckowski and Seabold with Bello rising more quickly than some expected.
2023, now has Whitlock and Bello in the 5, along with Pivetta, Kluber and Sale/Paxton hopes, again. I'm counting those 6 as 5 and thinking having the 6 does not add depth, but the depth still looks very promising. Not proven, but promising:
Mata
Crawford
Walter
Winckowski
Murphy
Seabold
(Drohan/Santos)
Last resort: Houck