Again, Gillispie was nationally regarded as a very desirable up-and-coming coach prior to his tenure at Kentucky. Nobody questioned it at the time, he was thought to be an excellent hire. Only later did it become clear that the job was too big for Billy.
And Barnhart certainly didn’t keep him around too long, two seasons and he was out the door.
To give the devils their due, Barnhart wasn’t faced with a Calipari/Stoops contract situation because BCG was too stupid to sign his original one, let alone a big increase (not that Mitch ever contemplated offering him one).
I have little doubt Barnhart considers the Gillispie hire the biggest mistake of his career.