Unpopular opinion time.
I like Bigsby in general. Is he an elite back? I've come to believe he's not. He's good, but he's just not exceptional.
I'm not impressed with his vision. I don't think he's got quality top end speed - never gets to the corner and doesn't have that breakaway gear in the open field. His elusiveness isn't outstanding -- he gets tripped up/knocked down/wrapped up too easily in one-on-one situations.
I admire his heart and commitment. But he's not Rudi, Carnell, Ronnie, Kerryon, Tre, Bostic, Tate, Dyer, Irons, Joseph, Danley, Lester level. I want him to be, but (maybe because we have a shit offensive line, I don't know) he's just not.