Ferragamo got hurt in the early part of the 1984 season and was shuffled of to Buffalo in 1985 for Tony Hunter. Ferragamo was never the same after he broke his right hand against the Steelers in week 3 of the 84 season and that is why the Rams went hard after Brock in 85.
Georgia Frontiere proved to be penny wise and dollar foolish time and time again. She let Ferragamo go to Canada in 1981 only to make a trade to the Baltimore Colts for an Bert Jones who was on his last legs and did not last five games until his neck injury forced him to retire and Ferragamo was back in the saddle again.
Overall Ferragamo only played one year in Canada, but I believe they let him go because of having Pat Haden who was awful. Who knows what would have happen if they just paid Ferragamo what he was worth and kept the draft choices instead of trading for Bert Jones.