Not that I have high hopes for Siemens because I don't think he'll ever be an NHL defensemen. But if you're going to give him a shot, then give him a shot.
I've liked what I've seen so far from Lindholm but I don't like how they've limited him to 12-13 minutes per night, especially when he's on a pairing with Beauchemin and we routinely see Francois approaching 20+ minutes. You're the last place team in the league, no harm in playing a kid 16-18 minutes per night.
That said, I fully expect one of Goloubef/Wiercioch to go in and Siemens to be a healthy scratch lol