I look at salaries vs. performance this way--
Sale, $17M, pitches for the Braves.
Turner, $7M, plays elsewhere.
Story, $22.5M, out for the season after diving for a ball.
Yoshida, $18.6M, WAR (as a DH) to date, +0.2, now on IL with an undiagnosed hand injury and could be out awhile. Unlikely to be missed.
Giolito, $18M, out for the season and maybe some of next season
Whitlock, $3.5M, 4 good starts, ERA 1.96, 18.1 IP, WAR +0.9, due back this month, but almost certainly fragile.
Devers, $29M, shoulder issues, defensive issues, WAR +0.9--so not earning his pay.
Jansen, $16M, good closer, but the combined salaries of starters Bello, Pivetta, Crawford, Whitlock, Houck, and now Criswell add up to $15M. So Jansen was/is clearly an overspend, and the rotation an unbelievable bargain.
Pivetta, $7.5M, WAR +0.3, and overspend so far, but who knows?
O'Neill, $6M, WAR +0.9, about right, but his hitting has cratered since the concussion
Contrast the above with the astounding pitching, which is underpaid (except for Jansen, who is overpaid), and with these bargain basement performers so far--
Duran, WAR +2.2, min MLB salary $750K
Abreu, WAR +1.6, ditto
Wong, WAR +0.8, ditto
McGuire, WAR + 0.5, $1.5M
Rafaela, WAR +0.2, ditto, leads Sox in rbi's with 22 over 2d best Duran 16.