Fair point.
But... last season he was decent. The football was decent too. I know this season has been awful but none of us know which way next season would go under Pardew. We can't know.
Since we can't know what kind of football we'll have until we're playing it, the only stuff that matters are the external factors like stability and relationships in the club.
Of course you can know.
I know Brendan Rodgers won't play a negative long ball game next season, I know Pulis will play that. I know Arsene Wenger will still be one of the best managers in the country, I know Alex McLeish won't be.
You're talking as if football is won and lost purely and simply on the basis of chance and we should stick with Pardew because we have a 50% chance of heads. Of course you can know these things.
Based on what he's done for us so far it IS 50/50. We've had a season we were happy with and a season we weren't happy with. Who knows what we're getting next season?