I liked Pietrus, but he, Keeyon, Tony Allen, Scal are all examples of "absense makes the heart grow fonder" guys.
All had their endearing moments here, but also had their struggles. None would be difference makers here this year. MAYBE TA, but truthfully, when he was here he was a feast or famine guy. TA was regularly ripped for dumb plays; I remember cringing whenever the ball was in his hands. When he left he suddenly became a legend (yes, I know that is an exageration).
Barbosa can really influence a game. He is capable of making horrendous plays, but he can catch fire and he can change the pace of game. Really like him on this team, but question how much he can be relied upon for consistent play.