Calls for Wenger to see his reign ended this summer have been growing in intensity, with the Frenchman seemingly incapable of providing the necessary inspiration from the dugout.
Arsenal have fallen away in another Premier League title race, while suffering a last 16 exit in Europe for the seventh straight season.
Wenger may have enjoyed considerable success over the course of 20-plus years in north London, but many feel the time is now right for him to move on at the end of an expiring contract.
Gunners fans are not the first to use planes as part of a protest against an under-fire manager, with Manchester United supporters taking a similar approach during David Moyes ill-fated tenure.
The message could not be much clearer, though, with “No contract, Wenger out” there for all to see at The Hawthorns.
Wenger has refused to waver in his stance that he remains fully committed to the club and his post, but he will be aware of the need to end the campaign with a flourish if he is to turn the tide of ill feeling that continues to wash against him.
His side did not get off to the best of starts on Saturday lunchtime, though, with Craig Dawson opening the scoring for West Brom inside 12 minutes, though Alexis Sanchez did equalise moments later.
And that goal was followed by the arrival of a second plane, with this one showing its support for Wenger with the message 'In Arsene We Trust #Respect'.
Whichever side of the fence you come down on, Wenger's future certainly seems to be one of the most decisive issues in the Premier League this season.