There are various ways to look at and compare the 2023 Sox rotation and the 2022 rotation, and even the 2021 one.
I like to look at GS'd and what is returning vs being replaced. With so many moving parts there are a number of ways to mix and match the comps.
Matching pitchers to come to 33 GS'd method:
2022> 2023
33 Pivetta 4.56> 33 Pivetta (equal)
26 RHill 4.27+5 Seabold 11.29 + 3 Davis 5.47 > 33 Kluber (???)
23 Wacha 3.32 + 9 Whitlock> 32 Whitlock 3.45 (???)
20 Nate 3.87 + 11 Bello 4.71> 31 Bello (???)
14 Wink 5.89+ 4 Houck 3.15 + 2 Sale 3.18? 31 Sale+ Paxton + others (???)
Or like this:
69 GS (Nate, Wacha, Hill= 2 FT SP'er) > 29 Kluber and Bello/Whitlock 20GS to 50GS
34 GS (Wink, Craw, Seabold, Davis= horrible!)? 34 Sale, Paxton, Mata, Walter, Murphy (Wink/Craw)
Any way you shake it, I don't see a worse rotation, unless Sale and Paxton give us close to nothing and Mata, Walter, Murphy and second year men, Wink & Crawford, all suck. Pivetta should be about the same. Bello, Whitlock and Kluber need to produce, but is that really asking much? Are they bigger question marks than pitchers on other teams?
It's easy to look at the ERAs of Wacha, Nate and Hill and say, that will b e hard to replace, but they only started 69 games, last year. Wink, Craw, Seabold and Davis started 34. Our SP'er ERA of 4.49 was just 0.10 better than our horrific pen (4.59.)
WHIP:
1.352 SP
1.356 RP
OPSA
.763 SP
.722 RP
I'm not sure showing how bad our rotation was last year helps make the 2023 one look good, but I do think it can and will be better in 2023. I realize there are some major what ifs, but there was last year, too, and this year we have added Mata, Walter and Murphy to Wink and Crawford and removed Seabold and Davis from the mix. In a sense, we also added Sale & Paxton to the mix, too.
It sucks having so many questions, but we only need 3 to 4 out of 10 to come through.
Pivetta is our solid #5.
We need 3-4 from this list to do well:
Sale
Kluber
Whitlock
Bello
Paxton
Mata
Crawford
Walter
Winckowski
Murphy
(We could even add Houck to make this list 11.)
Those odds do not look bad, to me.