Nobody really seems to know, and those who do are keeping tight-lipped about things.
The last time Frank Corrado played an NHL game was March 12, 2015. As a member of the Vancouver Canucks, he dressed for 16:15 against the Los Angeles Kings, had a clean stat line, and that was that.
Because despite being a member of the Maple Leafs for the entire 2015-16 season to date, Corrado hasn't suited up once for them. The 22-year-old did play seven games for the Marlies, scoring three assists for them over that time period, but that's been it.