The pundit has been discussing the St James' Park outfit's struggles.
And the pundit has called on boss Steve McClaren to become a 'manager' as opposed to a coach. Indeed, he wants the Newcastle head coach to stop talking about how his side are doing in training - or they face certain relegation.
The Tyneside outfit lost 5-1 against former manager Alan Pardew on Saturday afternoon.
Cascarino told Sky Sports News: "Newcastle have too much possession in their own half. They don’t hurt teams.
"McClaren needs to become a manager. Stop talking about working on a Monday to Friday, they’ve got to turn up on a Saturday.
"Absolutely, at the moment they are going down."
Things aren't going to get any easier for Newcastle this weekend as they host Jurgen Klopp's Liverpool side. The Reds are starting to win more regularly and are particularly impressive away from home as opposed to their Anfield form.
The Magpies, meanwhile, are leaking goals and not offering any at the other end.
Newcastle's only two Premier League wins this season came after a shoddy performance against Bournemouth and a good attacking display against Norwich that still contained huge defensive flaws.
Is there any hope of the St James' Park outfit turning it around?