His ROS projections are all between 111 - 118 wRC+. Obviously we'd rather see it approaching 130, but that's still a quality regular bat. Essentially the same projections as Grichuk has ROS (Grichuk's wRC+ for May was 113, with his BB% plummeting to <2%).
Steamers actually projects Tellez to be a better hitter than Teo, Grichuk and Gurriel for ROS...
Charlie is obviously batting Panik 6th because he was 6 for his last 7. I don't really have an issue with that in a vacuum, but obviously over the long run, it's really dumb to have Panik hit ahead of Gurriel and Tellez.