Many factors in play here, money apparently is not one of them.
One major factor as some have speculated, if JP gets promoted to DC, it would appear that Bo is going to have major involvement in the defense again.
Hiring of Mike Stoops, would signal the opposite, as a coach of this level one would assume he would be THE Defensive Coordinator in the traditional sense
That might be a good point. I thought Bo had worked with Mike at OU but Mike left the year Bo was the co-DC there so they did not coordinate together.