Samson played really well this game. He brings something different from Reed both offensively and defensively. Johnson's foul trouble has been an issue but he is putting up pretty nice defensive stats with 9 blocks and 4 steals in three games. He also has 7 assists. Those are nice numbers for a center. His problem is rebounding and fouls.
Compared to Reed, who has 3 assists, 2 blocks, and 3 steals in 11 more minutes. Of course Reed is much better on the boards and is scoring at a higher rate also.
Point being, I think they actually compliment each other quite well as long as Samson can keep the fouls down.