I agree with this.
And also, i think Vincent made the right decision not bringing him back in the boardroom. The reason he was 'scared' to bring him back is that he actually had nothing on him. The only criticism he would have had, as higlighted by the Sugar, Karen and Nick, is that he came up with the original idea. BUT, Vincent agreed with him, and loved it, so he knew that's what Jim would keep coming back with.
Plus, is it really fair to bring someone back to the boardroom, or fire them, based on that fact that they came up with one idea (which everyone else backed) despite probably making the greatest contribution in the task. I think this whole point about "didn't bring back Jim" was dwelled on far too much, and would not have amounted to anything - there is no way in hell Jim would have got fired, Vincent was always gonna be gone (and he knew it).
I think the reason they seem to be coming down a bit hard on Jim is because the producers have become aware that he's becoming the obvious winner too early on, and thus the suspence of the show is being diluted - usually they expect some of the less serious contenders to last a bit longer but they all seem to be showing their stupidity far too early in this series!