For people who poo-poo the Sox draft strategy, I did find this:
https://www.usatoday.com/story/sports/mlb/2019/06/03/a-team-by-team-look-at-baseballs-draft-from-1996-2018/39539549/
1996-2018 drafts:
BOSTON RED SOX
Total WAR for all drafted players: 697 (MLB rank: 1st)
Total WAR for drafted players who signed: 483.9 (rank: 2nd)
Total WAR for drafted players who did not sign: 213.1
Impact players (10 WAR or more) drafted: 25 (rank: 1st)
Impact players drafted and signed: 16 (rank: tie-2nd)
Most recent impact player drafted and signed: Mookie Betts, 2011, fifth round (37.7 WAR); Jackie Bradley Jr., 2011, first round, pick No. 40 (12.3 WAR); Travis Shaw, 2011, ninth round (10.8 WAR)
Lowest pick for impact player drafted and signed: David Eckstein, 1997, 19th round, pick No. 581 (20.9 WAR)
Best draft class, based on total WAR (impact players listed): 2005, 102.8 WAR (Jacoby Ellsbury, Clay Buchholz, Jed Lowrie, Charlie Blackmon, Jason Castro)
Best draft class, counting signed players only: 2005, 65.3 WAR (Jacoby Ellsbury, Clay Buchholz, Jed Lowrie)
Highest pick: Trey Ball, 2013; Andrew Benintendi, 2015 (pick No. 7)
Best player drafted and signed, based on career WAR: Dustin Pedroia, 2004, second round (51.7 WAR)
Best player drafted who did not sign: Mark Teixeira, 1998, ninth round (51.8 WAR)
Best player drafted and signed from first round: Jacoby Ellsbury, 2005, pick No. 23 (31.1 WAR)
Details: The Red Sox have been excellent in the draft and have the championships to show for it. Their 2005 class included an incredible five impact players, three of which signed. Six years later, they drafted and signed three more. Boston's title teams have been populated with plenty of standouts originally drafted by the team: Pedroia, Buchholz, Ellsbury, Betts, Bradley, Kevin Youkilis, Jonathan Papelbon, Jon Lester . the list is an impressive one. The Red Sox have also lost a lot of solid players in the form of unsigned picks. They could afford to.
2010-2019:
1st Rd Picks ONLY value: (about middle of the pack)
All draft picks 2011-2017: (Sox #1:)
https://brewerfanatic.com/forums/topic/32807-total-war-by-draft-picks-since-2011/
Values by draft slots: 2000-2010:
https://community.fangraphs.com/success-rate-of-mlb-first-round-draft-picks-by-slot/