First, I agree in the sense that he should not get fired (right now) based on the sum of the whole of what he has accomplished. I'm on record saying he should get 2 more years. However, I also think the program is on the downturn and he is very likely not going to get it done. I hope I'm wrong. I think it is going to take more than Fran's boys and Joe W to save an incomplete and poorly coached defensive team.
I do think Dr. Tom built up more street creed by year 8 compared to Fran though. Dr. Tom had 6 NCAA tourney appearances with 1 Elite Eight and 1 Sweet Sixteen in that time. Fran, by comparison, 3 NITS, 1 First Four (fringe NCAA invite), and 2 NCAA tourney appearances. But, I agree with Jon that Fran dug the program out of the grave so that is his saving grace right now.
I think he has 2 years to get a basketball fundamentally competent, NCAA tourney roster, complete with a true point guard and center that does not tank considerable portions of the regular season. I'm not holding my breath.
The end might not be here, but I think we are seeing the beginning stages of the final act. Even in Dr. Tom's 4-14 year, I still had hope for better days. That was a tough Big Ten and Iowa beat North Carolina that year. This is something completely else I'm watching.