It’s all about contractual control and cheap talent. When the talent becomes expensive, you have less to spend elsewhere. Also, when your team is horrendous, sometimes it’s best to have your core come up together in synchrony. Blowing it up isn’t a bad option for these Sox. The Sox pitching staff is in shambles. 2021 will be a wash regardless as ERod has no timetable. Sale wasn’t even a lock before TJS to be any good but now post TJS he won’t reach his new peak until later in the season assuming good health. Eovaldi is a mixed bag. If the Sox go out and sign Bauer or Stroman, good luck. You still have a rotation of one holdover in Eo, Bauer or Stroman, a stiff, and maybe ERod and maybe Sale with literally nothing behind it. Then, to make matters even better, ERod is a Fa after 21, you’ve got Beni and Vaz through 22 and Devers through 23. Your good core is going to get real expensive, which wouldn’t be a problem if the team was great right now. Prop open the window, stay good for as long as you can. But your team sucks right now and your core has 2-3 more years left before it either leaves or gets pricey