Not sure Nance is possible for a number of reasons, but even if hypothetically he were, he's got a contract that runs a few years around $10M. Not a bad deal, but may be really hard to fit into our cap. But I went to look at his defense a bit and this was a pretty impressive video:I think the "ideal" back up center for Gobert wouldn't be another Gobert, but someone who can give the Jazz a different look (ie. a center who can hit 3 pt shots, but still set hard screens and play decent D.).
For what it's worth that might be:
Alex Len (36% from 3 last season, 25% this season - and Atlanta is the worst right now, he has to be available).
Aron Baynes (33% from 3, and an 80% ft shooter - Phoenix is the 11th seed currently, Pelicans are climbing - they got to realize playoffs aren't happening soon enough).
Kelly Olynyk (40% from 3 this season, 88% on free throws - Miami likes him, I don't know if they love him though, they have $140M in committed salary and may be looking to lower that amount before the deadline - Olynyk has a player option for $13M for next season).
Frank Kaminsky - (35% from 3 this year, a career 75% FT shooter, the Suns like him for sure, but even averaging 11 ppg and 5 boards, he is the lesser of their 2 backup centers.) May be available.
Cody Zeller - (hits just 27% from 3 this season, but is the best rebounder of the group with 7 per game - Charlotte could move him because at 15M next season, he's a bit overpaid).
Larry Nance Jr. (definitely more of a 4/5 with emphasis on him being a 4, but he hits 34% of his 3s, great rebounder 6.9 rpg, and is a great energy guy off the bench, this one just seems like a possibility because Utah likes to trade with Cleveland lately - see Jordan Clarkson-Dante Exum, Kyle Korver-Alec Burks, Jae Crowder-Rodney Hood trades).
In a hypothetical world, if he ended up juts getting most of Bradley and Niang's minutes, that'd be huge.