I think the idea of Pruitt makes a lot more sense for this team than either Eddie House or Tony Allen. On paper, Pruitt is a 6'4" combo guard that can dribble, defend, and shoot. He is a perfect backup for this team at the 1 and the 2: Ray sits down, Pruitt is a shooter. Rondo sits down, Pruit brings the ball up the court. In both instances, he has the size and quickness to play solid team defense.
In actuality, he has not proven it yet so we cannot rely on him in the playoffs this season. Hopefully Doc continues to work him into the rotation so we can see what we have.