If the Sox had signed another MLB ready starter, I think they could have used a modified 6 man rotation to start the season and then had Whitlock (or the less effective other starter) pitch out of the bullpen until there was the inevitable injury. If they had signed two, I imagine the second would have been someone like Lorenzen who could have played a similar swing role since he didn't sign until the end of March and was likely available for that price earlier in the winter.
And I am also hopeful about Fitts, since he seems to have some legit upside.
I still don't understand - honestly. I get that you'd go with a six man starting rotation: Starter A, Houck, Bello, Pivetta, Crawford, Whitlock, with Lorenzen in a swing role to cover innings. Then move Whitlock (who was pitching fine with a 1.96 ERA) to the pen if there wasn't an injury.
But meanwhile, you're stuck with the 6 man or a demotion. But you can't run guys out to 6-7 inning starts in the early going, and a 6 man just makes that a heavier burden for the pen. The Sox went with a 5 man to open the season this year.
(This scenario also assumes Lorenzen, who got a chance to start for Texas, would have signed as a dedicated swing man and the number 7 guy on the depth chart? OK - that might be possible. But they could have just as easily signed another long man who wasn't as good.)
But the key part of this strategy is you're really doing this to get Lorenzen starts to keep the innings total down on Houck, Bello, and Crawford? That's the part I don't get.
How do you transition him from long-man to starter, or, most likely 2 inning man to starter mid-season, and what do you do with the bullpen in the meantime? There are only 13 pitching spots on the roster.
The sox basically had a long man in the beginning with Winckowski and Anderson. And they had Criswell in the minors since he had an option. Who they called up when Pivetta went down. They kept him up after Whitlock went down and Pivetta came back - and now they're stretching out Winckowski as a starter in AAA, because he has options. Lorenzen doesn't (I assume), nor would the other FAs they could have signed over Criswell.
My basic point is this is the same number of pitchers in pretty much similar roles. Replacing Criswell or Anderson or Winckowski with different long-men/possible starters would not change anything in terms of the expected innings totals for Houck/Bello/Crawford.