Some reasonable trades. Obviously some are better than others and some would require additional trades, but I think they are all reasonable value for Pierce and would in theory be realistic for the teams involved.
3 Team
Bos - Gay, Bledsoe
LAC - Pierce, Arthur
MEM - Odom, Butler
Bos - Leonard, Blair, Jackson, Bonnar
SAS - Pierce, Wilcox
Bos - Barnes, Jefferson, Ezeli, Tyler, Jenkins
GS - Pierce, Melo
Bos - Granger, T. Hansborough
Ind - Pierce
Bos - Deng, Belinelli
Chi - Pierce
Bos - Sanders, Udrih, Dunleavy (thiw would depend on how much Ainge likes Sanders going forward)
Mil - Pierce, Wilcox