I'm confused by your list of transactions, because no one signed a free agent contract with a new team larger than Sullinger's contract after Sullinger's QO was rescinded. And of the 6 teams with cap space, only Brooklyn actually has a need for a PF, but Sullinger is far too similar to Brook Lopez for them to be a good fit (and at the time Crabbe was still signed to the offer sheet, which was a huge portion of their cap space).
Sullinger signed for 6 MillionJuly 26 update
4:30 p.m. ET: Restricted free agent Maurice Harkless has signed a new four-year, $42 million deal to stay with the Portland Trail Blazers, his agent told ESPN.com's Marc Stein. The Blazers' signing of Harkless follows Monday's contract extension with reigning NBA Most Improved Player C.J. McCollum,
That is seven million which is more than six.
July 25 updates
3:05 p.m. ET: The Miami Heat and free agent guard Dion Waiters have agreed to a two-year contract worth $6 million with a player option in the second year of the deal, as first reported Monday by The Vertical and confirmed by ESPN. Waiters averaged 9.8 points for the Oklahoma City Thunder last season.
Same as Sully.July 19 updates
12:55 a.m. ET: Veteran sharpshooter Mike Miller is nearing agreement on a two-year deal in the $6 million range to return to the Denver Nuggets, league sources tell ESPN's Marc Stein. Miller, 36, played last season in Denver after spending four of the previous five seasons alongside close friend LeBron James in Miami and Cleveland.
Same as Sully,July 18 updates
12:29 p.m. ET: Restricted free agent big man Miles Plumlee is re-signing with the Milwaukee Bucks on a four-year deal worth $52 million, according to his agent. Plumlee averaged 5.1 points and 3.8 rebounds in 61 games with the Bucks last season.
This offer was more than double what Sully got.
July 14 updates
7:58 p.m. ET: The San Antonio Spurs completed a flurry of moves Thursday by signing backcourt mainstay Manu Ginobili to a one-year deal at an estimated $14 million, according to league sources. The Spurs announced the re-signing of Ginobili on Thursday night after first using their salary-cap space to sign former All-Star center Pau Gasol, Latvian import Davis Bertans, rookie Dejounte Murray, big man Dewayne Dedmon and young guards Ryan Arcidiacono and Bryn Forbes.
More than Sully.July 12 updates
2:03 p.m. ET: The Detroit Pistons have signed center Boban Marjanovic to a three-year, $21 million contract. Detroit announced the deal Tuesday after the San Antonio Spurs didn't match Detroit's offer for the restricted free agent.
More than Sullyhttp://www.espn.com/nba/story/_/id/16647240/nba-free-agency-2016-latest-news-buzz-rumorsTEAMS WITH CAP SPACE REMAININGAdditionally, the Sixers have $19,290,799 in cap space and passed on Sully.
The Nets have $17,194,363 with cap space and passed on Sully.
The Nuggets have $15,357,278 in cap space and passed on Sully.
The Suns have $13,242,017 in cap space and passed on Sully.
The Jazz have $11,781,904 in cap space and passed on Sully.
The Timberwolves have $10,171,692 in cap space and passed on Sully.
http://www.spotrac.com/nba/cap/So as you can see, quite a few teams had some money left and choose not to spend on Sully. Free Agents were signed for more than he made after he signed as well. Bottom line is he hurt his value but vanishing in the playoffs and gaining weight during the season once again.