The problem lies with Linden. I think the media and most fans are assuming that Linden and Benning's role is like that of other teams with a similar type of structure. Linden is the boss (Benning alluded to this when he first got hired). Therefore, it is up to Linden to define his role. If he wants final say on everything he can. If he wants to defer he can. It's up to him. Brian Burke, when he had Jay Feaster, made it known that he has the final say. With Treliving, Burke made it known that Treliving calls the shots. John Davidson, when he was with the Blues, was the face of the franchise and was quoted as saying that everything goes through him. In Columbus he defers to Kekäläinen. Sakic, was the one making the decisions from the start and just added the GM title without much ceremony. Shanahan, no doubt, came in with clear ideas of how he wanted his team built and is in full control. Neely was a strong voice in the room and no doubt now has full authority to direct his GM in terms of moves to be made in his vision. Linden, in comparison, still looks like a lost puppy who is bewildered by everything after a year into his job.
None of the guys I named above have problems answering questions. Even if they defer to the GM in terms of decision making or the day to day activities, they are generally kept well abreast of what is going on with the team. Benning reports to Linden. How hard is it for Linden to touch base with Benning for even 5 minutes a day to discuss any new developments. And if he doesn't know the answer, he can easily just say ask Benning. There's no shame in saying "You will have to ask Benning. He is the one negotiating deals. He comes to me when he feels there is a solid offer on the table that we should consider."
This isn't rocket science. Linden is the boss. Aquilini said Linden is in charge. Linden, presumably, can delegate as much as he likes.
Right, but all this can change whenever he wants.