If the Suns were serious about making the playoffs, Turiaf would help them contend with opposing teams that are more physical. Also I understand the Celtics are one of the teams trying to sign Turiaf. Their record is not much better than the Suns.
The whole thing for me, the Suns should be all in for making the playoffs or content to slide down in the standings by letting the chips fall where they may which includes sticking with Markieff as the primary backup PF. I'm not knocking Markieff, but he is not ready to compete with bigger teams inside... now. He is still a rookie. So I'm torn. The Suns are sort of like a person who cannot decide, with one foot in the water and one foot on dry land.
Also I played the draft lottery today and I got the Suns into the third position on the third or fourth try. I do not want the Suns to fall out of the lottery as much as I like them playing hard and getting some wins.