DAL OFFSEASON: Trade & FA | Mavs "mostly done...but you never know."

[omahen]

My assumption is that this means the Mavs think

A. Powell is healthy enough to play at the start of the season

and/or

B. James Johnson can play center in a pinch.

My assumption, before KP returns: 

Kleber, Bobi at C
DFS, Johnson at PF
Powell can play both positions.