Worst coach in what sense? If going by win % alone then Reinhold and his .188 wp is the worst of any Bomber coach all time.
Burke was simply clueless, Daley was a horrible coach and couldn't judge talent if it bit him you know where and Kelly brought the circus to town on a daily basis.
All horrible in there own way but Reinbold gets my vote simply because his win % is the worst all time.