If last Sunday's humiliating 1-0 derby defeat to Sunderland has taught Newcastle United anything, it will be just how far they have fallen following the departure of Alan Pardew to Crystal Palace.
Since Pardew left for Palace in early January, Newcastle have taken just nine points out of a possible 30 under John Carver, whereas Palace have claimed 25.
In doing so the Eagles have erased the 10 point deficit they held to Newcastle at Pardew's time of joining, and have managed to open a lead of seven points over the Magpie's, all the while looking by far the better of the two teams. Any fans who were formerly in the sack Pardew brigade will surely be questioning their judgement now.
This latest defeat extends a losing run in derby matches to five straight losses and seven without a win. However, perhaps the most alarming fact isn't in relation to their ever increasing losing streak, but rather that they simply are not good enough in terms of their overall quality.
Having been second best in many departments for the majority of their recent matches the Newcastle squad appear bereft of any form or confidence that they once held under former manager Pardew.
This is perhaps most apparent in the defence, who have only kept one clean sheet in eight matches and just two out of the 13 that John Carver has been in charge for.
Combined with the fact that their troubles in front of goal have seen the Magpie's fail to score more than one goal in a match throughout the previous two months it becomes clear as to why they have been in free-fall of late.
Crystal Palace 'like watching Brazil'
By contrast, Crystal Palace have seen a miraculous turnaround in results under Pardew to become the Premier League's form team outside of the top three.
Impressive victories over the likes of Manchester City and West Ham in recent months have seen Pardew emerge as a serious contender for the manager of the year award.
Their 4-1 win at the weekend over Newcastle's latest conquerors, Sunderland, prompted Pardew to tell BBC Sport: "It was like watching Brazil.
"It was an emphatic win and the scoreline didn't even do us justice. We had so many chances and never looked in any danger."
Perhaps slightly boastful, it is an understandable reaction given Palace's transition from relegation candidates into comfortable top-half contenders, a transformation that will no doubt leave Newcastle supporters green with envy.
Pardew has found a home at Selhurst Park
Clearly a far happier man at Crystal Palace, Pardew appears to have found a trouble free home in South London in which he can continue to demonstrate his managerial credentials.
Although large sections of the Newcastle crowd will continue to uphold their disdain for their former manager, they will surely wonder how this season would have turned out had he remained in charge.
Likely to have been in a better league position then where they currently find themselves, Newcastle simply look disjointed without him.