I have a feeling that when Wellman was talking to Currie about the possible position of AD, he told him he wants to give Manning at least 1 more year either because he really believes in him, is narcissistic and wants to be right, to save 3+million on buyout or maybe there is some clause about #5 19+ loss seasons allowing contract to break without buyout. Either way, Currie agreed to humor him as he wanted the job. I don't agree with Currie's choice but could see how it maybe played out this way.
With the new facilities, it should be much easier to recruit a coach next year (along with another 3+ million to work with). Currie is likely planning to weather the storm this year (placating Ronnie-boy) and unless Manning performs a stunning turnaround, make the change next year. If he gets a good coach who can turn the program around in a few years, this lost season will be forgotten and he will still have Wellman's support and connections.