Reports have already surfaced suggesting that the Indiana Pacers want to upgrade their center position. Given how much of a long-term concern it is, this isn't a bad idea. But doing so would almost inevitably include moving on from Bennedict Mathurin, and that's just not worth it for this to happen.
There are some solid big men options out there for the Pacers to pursue. The best, most realistic one may be Dallas Mavericks center Daniel Gafford, who the team is reportedly eying, according to Jake Fischer of The Stein Line.
In theory, Gafford would be a solid fit for the Pacers.