I don't think RB is the issue. Swift is looking good. Loveland was a bizarre pick, though. How much influence did Johnson have on that one? It matters. I'm hoping for you guys it was all Poles and Johnson tried to talk him out of it.
This might sound crazy, but when does Johnson consider going with Bagent? How much time does he give Caleb? I'm assuming Caleb was one of the reasons Johnson took the job, but it's not like he's tied to him.
Swift is a 1B on a good team. He has some speed, but he's pretty sub-par between the tackles and his tackle breaking is some of the worst in the NFL. Bears need that Montgomery Back for the Ben Johnson Offense to click. Monangai is pretty average all around and we're leaning on that.
I disagree on Swift. He looks quite a bit better than your description to my eyes. I'd be giving Monangai fewer touches. He's basically a JAG with a bit of a FF following. Swift didn't get nearly enough run yesterday unless they're managing his groin.
I don't think Swift is a world-beater or anything, but he's one of your better weapons right now. Johnson should be using him more, IMO.