The Mavs have also been in contact with the agents of guards Isaiah Thomas, Mo Williams and D.J. Augustin. The 5-foot-9 Thomas, who is being replaced as the Kings’ starter by Collison despite averaging 20.3 points and 6.3 assists last season, is viewed in Dallas as a Plan B option if they aren’t able to get a deal done with Harris. Williams and Augustin could be fallback options as well, but they could also fill a need for backcourt perimeter shooting ability, even if Harris returns. Williams, who lives in the Dallas area, was Portland’s sixth man last season and can’t be paid more than $3.18 million next season by the Trail Blazers after they used their midlevel exception on center Chris Kaman. It’s also possible that the Mavs could be in the market for a pair of point guards if they move Felton in a salary-dump deal. - See more at: http://espn.go.com/blog/dallas/mavericks/post/_/id/4702482/mavs-still-confident-theyll-keep-harris