I usually put him in trades for salary purposes. Our roster has a hard time matching salaries because the only players that make more than Tatum ($5.6M) are Irving, Horford and Hayward.
He shouldn't make or break a big trade, we gotta match salaries somehow, we're usually not trying to deal Tatum and Brown, and you also don't want to pile in tooo many players (he makes more than Rozier, Larkin, Nader, Theis & Ojeyele).
I wouldn't just give him away, but if we're trying to make the money work for a star, yeah... he's usually in there.