This may sound strange, but the inclusion of Horford (obviously for salary) ruins the idea for me. He seems like the teams most consistent player this season, and will be needed if the team makes the playoffs. Plus, I don't trust Timelord being healthy all season, and only having Freedom for a backup.
I do agree the Celtics need to look into trading Smart, when he becomes eligible. He is a great 6th man, but now plays like he's the teams 3rd option, which oversteps his role and diminishes his importance to the team.