Hendrix 5.47
Hembree 5.06
Garrett 7.01
Perez 7.71
Doolittle 4.25 (with 4.74 FIP)
Sims 5.02
It's not all the Deleons, Fulmers and Romanos of the world causing the issue. If you trust that group going forward, you are more trusting than I am.
Also, the Reds are six games behind. Had they actually gotten a reliever or two without having tryouts for half the season, where would that be? They absolutely should go get a reliever or two.