First I want to commend you for taking as much time as you have to respond after a loss like this. Although Brian Kelly will likely prove to be a good coach at ND today he was Charlie Weiss with better conditioning.
A true Freshman QB on his first drive asked to execute a flea flicker? The last play of the half down 14 and you don't take the easy three points? BK can pull that kind of crapola at Cinci where the 7 knowing football fans of smalltown fanbase might raise an eyebrow however he deserves to be put to the fire for such horrendous calls.
If BK kicks the three at the half your final drive is a field goal to win from 49 yards or less. For these reasons more than any other you need to accept this was truly an ND loss.