This is probably on the more extreme end of the pessimistic perspective...
First, the notion that the Red Sox were going to DFA Renfroe, so they decided to dump him onto us for JBJ is patently false. He was their starting right fielder last year, hitting 31 home runs and OPSing over .800 on a team that went to the ALCS. Not even close to DFA material. The reason we were able to acquire him for JBJ is because we also gave them two top 30 prospects in return, including a promising power-hitting corner infielder in Binelas. Thus, Renfroe has legitimate value as a top 10 RF who is controllable through next season.
Our catchers should likewise have more than "minimal" value considering we're top 10 in WAR from the position. We may not have that single superstar, but we're nevertheless doing very well at C, and I'm sure other contenders like the Cardinals (who are 30th in catcher WAR) would be quite willing to take them off our hands.
Finally, Peterson and Brosseau (not Broussard) have an all-star caliber batting line between them, not to mention the fact that Peterson's defense at 3B has been up there with Arenado and Hayes. Granted, Peterson is a FA after the season which reduces his value, but it's still more than "little".
So, while you personally may not like our lineup, there is certainly value to be found other than just Adames...