Just think of all the wasted time we've gone through with waiting out Josh
If you don't trust JJ or Roddy, continue the crafty shifting and play Jet at the point...now you have a defensive counter that gives you extra minutes (Stevenson). He can cover up the potential lack of defense you get with Jet and could be a remote threat from range. I think Stevenson showed he can give you some minutes and you can possibly save Kidd from having to play some many minutes.
This can definitely be a massive momentum builder for the Mavs, but they gotta know the banner isn't in the mail, they've got work to do.