Not satisfied that GM’s sales are growing fast enough, CEO Ed Whitacre is shaking up the executive ranks once again and will bring some previously axed dealerships back into the fold.

The latest victims of his impatience are Cadillac’s marketing and sales departments. Bryan Nesbitt, who headed the brand’s sales and marketing and who starred in the Cadillac presentation at the Detroit car show just eight weeks ago, has been demoted back to the design department. Other execs at Cadillac were let go altogether.

Recognizing that you can’t sell cars from empty lots, GM also announced that it will let more than 600 dealers who had been flagged for termination back into the tent. The move will also reduce by half the number of arbitrations that the company will face over the closings.

Was GM stung by Ford’s sales lead in February? Does management think they should be picking up more disaffected Toyota owners in the wake of that car maker’s recall problems? GM officials, of course, won’t say one way or the other, but apparently there is no such thing as status quo at the Ren Center right now.

--M.D.