I'm not sure why Sanderson has to stick with Hamonic, specifically.
I'm not in a rush to separate them, the pairing has been good, but why is it the best D prospect we've had since Karlsson, possibly ever, needs to be tied to Hamonic specifically.
Karlsson spent time with Kuba, Sutter, Carkner, Picard and Campoli his rookie year
Chabot spent time Karlsson, Ceci, Boro, and Claesson
Brannstrom spent time with Gudbranson, Hainsey and Zub in his first 63 NHL games.
These guys aren't selected flowers that will wilt and die if they change partners or play with sub ideal partners. Sanderson will be fine,