Mike Marts, formerly Group Editor of the Batman titles at DC (see "Harras Names Team"), has moved to Marvel and will be taking the role of Executive Editor with undisclosed portfolio, Marvel announced today.  During his last stint at Marvel, Marts managed X-Men titles including New and Astonishing as a Senior Editor, so he’s taken a step up in position with his new role as an Executive Editor. 

Marts spent roughly eight years at DC; he moved there in 2006.  His previous tenure at Marvel was over ten years, from 1996 to 2006.

Marts has a long history of editing high profile books, so this is the move of a highly experienced veteran between the Big Two.