It probably won't be easy, but the bar of success probably isn't that high.  Kansas's record in the last 5 years is:  3-9, 0-12, 2-10, 1-11, and so far this year 3-8.  So, if he can get them even to 6-6, that is a huge improvement.  It will be interesting to see, and it's nice to have Les Miles back in coaching.