I do remember TT being a disaster here, but I thought that the primary reason was injury.
Above all, Thomas is happy simply to be playing after undergoing surgery in March 2014 to remove a cyst from his spinal cord that also involved placing a plate in his neck to fuse vertebrae. In a sign of his peace of mind and maturity, Thomas refuses to blame his inconsistent play with Charlotte on the then-undiagnosed injury.
https://www.chicagotribune.com/sports/bulls/ct-tyrus-thomas-bulls-spt-0131-20160130-story.html