Who knows? They have a pre-established character background to call upon, and by all accounts Jeri Taylor may not have had the same "heroine worship" for Shelby that she had for Janeway that let to so many absurd episodes.
Besides... I just want to see Captain Shelby for that brief snippet of Riker in Death Wish.
"Oh hello Commander
," Shelby said with a smirk, "please cooperate and testify for Q. That's an order, and if you think about giving me any lip, I'll snap you back so hard you'll think you're a first officer again... oh wait, you still are!"