Argonauts' starting QB undecided entering opener vs. Stampeders

If it's true, as some people say, that quarterback is the most important position on a football field, then the Toronto Argonauts are in deep trouble when they open the Canadian Football League season Saturday at the Calgary Stampeders.

While Calgary has Bo Levi Mitchell, who has won two Grey Cups in his six-plus seasons as the team's starter, Toronto has three question marks. McLeod Bethel-Thompson, Nick Arbuckle and An