Sit and start is relative and league dependent, so consider some of these suggestions more “fliers” and “fades” (note that some are targeted for DFS).
Good luck with your Week 4 lineups.
Heinicke is getting 7.9 YPA, is even running a little, and gets to play indoors this week against a pass-funnel Falcons defense that’s allowed the fourth-most fantasy points to quarterbacks.
Pitts is off to a disappointing start but he's run the third-most routes among tight ends. His air-yards share (24.6%) ranks second, so this is likely the last time he can be traded for at a discount.