I'm assuming that seeing as his spurs contract had no mention of a possibility of an extension, at least none acknowledged publicly, then he won't be here, regardless of results. I assume if you want the players to be put on notice then that would be very publicly addressed.Disagree.
A big personality can absolutely have an affect in the moment regardless of the long term future.
And you're assuming he definitely won't be here. If he does very well he'll be in the conversation.
maybe hopping? Probably better than seeing Gallagher on the wing again.