Dallas Morning News' Marc Stein notes that NBA teams can start signing 10-day contracts next Monday and says that Leon Smith may get consideration by the Mavericks.  Currently, the one-time but troubled Mav, is playing well for the Gary Steelheads, averaging 17.8 points and 15.9 rebounds.  While there is still concern that Smith may be too unstable to gamble on again, Stein argues that a 10-day contract isn't much of a gamble, especially for such a tough rebounder.