Chuck, like Warren Moon, was skipped by the NFL because they wanted to change him to another position and he had told all the teams that he was not interested in any position except quarterback.
It's hard to believe that both of those guys went to Canada (How dumb are the scouts and teams in the NFL?).
I followed Warren fairly close as he played college QB for Washington, (and they crushed the favored Michigan Wolverines in the Rose Bowl when he was a senior

, and he was the MVP of the game) He also went completely undrafted as he refused to change positions to play in the NFL. Warren led the Edmonton Eskimos to 5 consecutive Grey Cup Championships. And, up until 2006, Warren held the records for most passing yards in professional football, most passing touchdowns in professional football, and most pass completions in professional football.
Anyway, after being at Edmonton 5 years and winning the Grey Cup every year, Warren left Canada and went to the NFL where he was MVP in 1990, All Pro 3 times, and Pro Bowl 9 times....
Warren was also one of only two people ever elected to both the NFL and CFL Hall of Fames.
Here is what I don't get though????? Chuck is not on the list? I'm still digging to see if I can figure it out.....
Why???
http://en.wikipedia.org/wiki/TSN_Top_50_CFL_Players