I was thinking about this a little more, and I think CBS, with regards to Jericho, is kind of in a tough place, schedule-wise.
The obvious move would be to move Jericho to 9pm - but then you're competing against American Idol's results show half of your season, which isn't good at all. So moving it to 9pm won't work. Of course, at 8pm you're against Bones and Friday Night Lights, so that's not a great slot either.
I think the best move CBS could make (but won't) is to move Jericho to Monday at 10pm. Yes, 10pm lowers the show's ratings, but it also allows for the show to be a little more edgy. Also, and this is the big thing, Jericho could get viewers from Heroes - especially since nothing NBC is putting in that slot is sticking, and ABC/Fox don't have anything on then either. A Prison Break-Heroes-Jericho line-up would work really well in CBS's favor.
The reason they won't is because they won't want to move CSI:Miami. I'd personally move CSI:M to Wednesday to take a chunk out of Lost (not much crossover anyway), or Tuesday at 9pm to set up a two-hour block of CSI. Neither is likely though.