i don't believe bargs will regain his form if he continue to play along side lowry. if lowry and bargs play both of the bench, bargs will remain equally ineffective. the only way to get bargs going is to play him with calderon and to call plays for him.
in other words i don't believe bargs has the right conditions to regain his form. more you keep him with the raptors lower his value will fall.
The best situation I think we could put him in to raise his value is the 6th man role. Play him and Calderon together and surround both of them with our best defenders (Ross, Pietrus, and Amir/Ed?) and hope for the best.