With Rondo taking 35+ minutes at the point, I can't see the value in having in having 3 undersized two guards in Ray, Terry and Avery.
Mike
Hypothetically, think it could work, at least in the regular season.
Rondo (35) / Terry (13)
Bradley (25) / Terry (12) / Allen (11)
Pierce (30) / Allen (9) / "Pietrus" (9)
Rondo (35), Pierce (30), Bradley (25), Terry (25), Allen (20), Backup 3 (9).
You could cut into Pierce's minutes or the backup 3's minutes to get Allen more playing time.