Imo, the problem with Timelord is he cannot play D on the perimeter. Whenever he's on the court, we have to change our defensive scheme. The way our PnR defense works, Theis/Thompson meet the opposing ball handler at the level of dribble hand off and deny penetration. Timelord ain't got the lateral quickness to stay in front of guards on the perimeter, hence he drops back and protects the rim. It goes without saying that he's an amazing rim protector!
Our starting lineup is full of versatile defenders: Smart, Brown, Tatum, Theis, Thompson. All these guys can switch ball screens on defense.
Our second unit is a whole nother story: Teague, Pritchard, Semi, Grant, Timelord. The only switchable defenders are Semi and Grant. Pritchard and Teague get killed on switches. It makes way more sence to use Timelord alongside these guys and run a drop scheme on defense.