
Maybe he passed his 'magic hat trick' on to Spike.
S3: Chef Brian M. was eliminated in fourth place, and therefore should have become a sous chef for one of the finalists. Not only did he avoid this chore, but he managed to come back as one of the judges in the final episode!
S4: Now hat magic is working for Spike.
Odious hats must be like TC-kryptonite;
our bald sous-per-man TomC can't send you away.
It must be the hats; that's the only explanation.