[Husker] Coach Callahan when trailing at half

[Tom Risor]

I went back and looked.

During the SuperBowl year (a game in which they trailed and lost) the 
Callahan-coached Raiders were 1-4 when trailing at the half.  They 
trailed the Jets 10-6 at half in game 12 and won 26-20.  The follwoing 
year they were 1-8 when trailing at half.  In game 4 they trailed San 
Diego 21-14 and ended up winning 34-31 in OT.

His record for halftime adjustments doesn't look too good.  In those two 
years Oakland also lost 5 games where they led at the half.